We didn't want to swim in the sea, that looked very dirty.

I am going to have my house_____this weekend.

Peter asked his mother where had she been the day before.

Mai______in Ho Chi Minh City for five years now.

We have to cancel the meeting because the chairman's absence.

I last read a book three months ago.

You should try _____the door with this key.

Porter: "Shall I help you with your suitcase?"

Mary: “______.”

Although the teacher explained the theory clearly, the students found it hard to understand it.

Jane regrets buying that second-hand laptop. She wishes she_____ 

We should therefore learn to choose our words carefully and use them (33)____ ,or they will make our speech silly and vulgar.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 20 to 24.

Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.

Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings, friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.

Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people's behaviors. Employers, politicians, and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.

Learning is closely related to memory, which is the storage of information in the brain. Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result of a person's experiences.

There are many forms of learning, ranging from simple to complex. Simple forms of learning involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills.

It can be inferred from the passage that social workers, employers, and politicians concern themselves with the study of learning because they need to____

Tom: "Can I get you another drink?"

Bill: “_____”

You should create a good impression _____your interviewer.

Even though they no longer live together, they continue to be responsible _____their children

Without her teacher's advice, she would never have written such a good essay.