---Where has Mary been? I haven't seen her all day?---Oh,in order not to be disturbed, she spent the whole day __in the study, ___ her report.
— David hasn’t come yet. —I think he will ______ soon, for he means what he says.
Many students_______from the new library since it was open to all.
The doctor ______ him to give up smoking, but he refused.
— If you listen to me, you ______ take a good rest at once. — OK, I ______ do so.
What surprised me was not what he said but ______ he said it.