—What time _____ tomorrow ? —At 10:30
--Did your parents go to the meeting yesterday, Tom?---Yes, _______ of then did, but _______ spoke.
--- Could you tell us _______? ---- About five minutes.
The computer needs_________. I think I need ________ to ask Mr. Zhang for help.
---- What else do you think we should pay attention _________ our environment?---- Sorry, I’ve no idea.
It seems that the students devote much time and energy _____ a high score in the exam.