—What is your brother doing in the study? —He ________ his homework.A. is doing B. did C. does
— there a number of sheep on the farm last year? — Yes.
Great changes ______ in our hometown in the last ten years.
____ he is very old, he is quite strong.
— Look! The tree is growing well. When ? — Sorry, I don’t know, either.
We’ll have an English exam January.