Peter was so excited________he received an invitation from his friend to visit
Chongqing.
| A．where | B．that | C．why | D．when |
—Bob! How’s your project? I heard you started it last Friday，right?
—Oh！I__________for it．But I haven’t decided when to do it．
| A．have prepared | B．had prepared |
| C．have been preparing | D．was preparing |
a diary every day and you’ll improve your writing．
| A．Keeping | B．To keep | C．Keep | D．If you keep |
_____ in the queue for half an hour,Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |
The library needs _____,but it’ll have to wait until Friday.
| A．cleaning | B．to clean | C．being cleaned | D．to being cleaned |
-- Catherine, I have cleaned the room for you.
---Thanks. You _______ it. I could manage it myself.
| A．needn’t do | B．shouldn’t have done | C．mustn’t do | D．needn’t have done |