A. clean
Giải bởi Vietjack
Đáp án đúng là: C
Trước danh từ cần tính từ => loại D
Dựa vào nghĩa chọn C
Dịch: Nếu chúng ta hít không khí bẩn, chúng ta sẽ gặp những vấn đề về đường thở.
I have never eaten this food before.
=>It is the first time.......................................................................................
Rewrite the following sentences without changing their meaning
People use recycled materials. They save energy
=> If...........................................................................................................
Read and answer the questions
David lives in the countryside in Canada. He usually gets up early and does morning exercise with his bike. After breakfast, he takes a bus to school. He has lessons from 9.00 am to 1.00 pm. He often has lunch in the school canteen and then he has a short rest. In the afternoon, he has lessons in the library or PE in the gym.
What does he usually do in the morning?
Find the words which has a different sound in the underlined part.
Choose the best answer to complete each sentence by circle the correct words or phrases
My mother is a doctor. She takes care.......... ill people.
Read and choose the best answers.
People need to breathe. If they don't breathe, they (1)............ die. But how to clean the air people breathe? If they breathe (2)............ air, they will have breathe problems and become (3)........... Plants and animals need clean air, too. A lot of things in our lives create harmful gases and (4)............. the air dirty like cars, motorbikes and factories. Dirty air is called polluted air.
Find the words which has a different sound in the underlined part.
Find the words which has a different sound in the underlined part.
Rearrange the jumbled words to make the meaningful sentence.
we/ If/ recycled paper/ will/ trees/ many/ use/we/ save
