21. They are leaving for Hangzhou in ten days － __________, next Friday.
| A．in other words | B．in many ways | C．on the whole | D．on the contrary |
I think you should complain----______, of course, you are happy with the way things are.
| A．if | B．unless | C．as | D．because |
Only when Tom fully recovered ______ back to work.
| A．did he go | B．he went | C．had he gone | D．he had gone |
----Has Tom already finished his new story?
----I have no idea. He ______ it last month.
| A．had written | B．was writing | C．would write | D．wrote |
You have a big mouth, Tom. You _______ have told everybody the secret.
| A．can’t | B．mustn’t | C．shouldn’t | D．mightn’t |
He’s not got another job yet and it’s not ______ he will for some time.
| A．likely | B．possibly | C．probably | D．easily |