She ________ her research project diligently while her colleagues were conducting experiments.
Giải thích:
Sự phối hợp thì: QLTD + while (trong khi) + QKTD – 2 hành động diễn ra song song trong quá khứ.
Tạm dịch:
Cô ấy đang dự án nghiên cứu của mình một cách cần mẫn trong khi đồng nghiệp của cô ấy đang tiến hành thí nghiệm.
Đáp số C
______ are substances or waste materials that are harmful to the environment and human.
The word reinforced in paragraph 2 is closest in meaning to_________.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
My sister and I’m never allowed to chew gum when we were young.
A B C D
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Learning means acquiring knowledge or developing the ability to perform new _______.
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Good communicators can speak and write clearly and succinctly.
Did you hear a millionaire who ________ his entire fortune to charity.
University conducted experiments to determine whether this is actually a product of mental activity or if some individuals are just utterly (28) ________.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
Peter didn’t prepare well for his interview. As a result, he failed it.