-Are you______with doing a lot of homework every day?-Sometimes I am. But as a student, we have to do so at present.
34. —Have you thought of a topic for your speech yet? —No, I__________a lot about it, but I haven’t decided.
33. The users of this new mobile phone can check e-mails _____ they happen to be.
32. We trust you; only you can ______ him to give up smoking.
31. My computer ______yesterday .I must get it repaired this afternoon.
30. It is a good city for cycling because it is flat and ________is convenient for bikes.