Before she moved here, Arlene had been president of the organization since four years.
A.Before she moved
B.had been
C.president of
D.since
Đáp án là D. since => for, vì for + khoảng thời gian, còn since + mốc thời gian
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If either of you take a vacation now, we won’t be able to finish this work.
Have you learnt the reason why does the water of the ocean becomes blue?
The shop assistant have to break off the conversation to serve a customer.
It is difficult to get used to sleep in a tent after having a soft comfortable bed to lie on.
Her parents were very x because she was out so late that night.
I really must go and lie down for a while; I’ve got a x headache.
I/ Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from pronunciation in each of the following questions from 1 to 2.
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