-What are on show in the museum?-Some pictures ____ by middle-school students.A. taking B. having been taken . taken D. being taken
Do you notice the furniture in this room is quite different from________ in yours?
Why!I have nothing to do with it._______you want me to say?
You needn’t have ________ the speaker when he was speaking; there was enough time afterwards for you to ask questions.
It’s helpful to put students in a situation _______ they can learn how to cooperate with each other.
How I wish I _________ him the secret! I regret having done that now.