—He ____be in the classroom, I think.—No, he_____ be in the classroom. I saw him go home a minute ago.
Usually it’s easier to make _______ decision than to take ________ action.
--“Oh, no!There isn’t any sugar left.-- ______. I’ll buy some when I go into town.
You can’t imagine(想像) how much difficulty he had ___________his bad moods.
Amy was not sure _______________________.
When I feel blue , I prefer ________some books _______myself up.