We must pay attention to _______ the teacher carefully in class.

Now, everybody, please turn to Page _____ and look at the ______picture.

How long have you learned English—So far, we ________ English for more than six years.

Theboysittingbythewindowistheonlyoneofthestudentswho _______fromthecountrysideinourschool.

ld have arrived earlier,but Tom insisted that I _________ too fast.