At least how many tests were carried out by the scientists referred to in this passage?
Chọn đáp án A
Visitors to the museum are requested not to touch any of the ____________.
They have lived in New York for ten years before they moved to Washington.
Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
Although there is not much to do in our village, but I prefer living here.
John is famous for his programme of breeding ____________ animals.
Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
For long trips, flying is the fastest and safest to ____________ a far-off destination.
The University of Cambridge ____________ in 1209 and has served nearly 20,000 students of all cultures.