If a computer crashes，you will lose the file you _____ on if you don’t save it early enough.
| A．are working | B．work | C．will work | D．worked |
--- “Have you ever been to Beijing?”
--- “No, but I wish I _____”
| A．have | B．will | C．do | D．had |
A few minutes earlier and we _____ the rain.
| A．have caught | B．had caught | C．could have caught | D．were to catch |
I _____ you some money, but I hadn’t any on me then.
| A．would lend | B．would have lent | C．could lend | D．may have lent |
He treated me as though/as if _____ his own son.
| A．I am | B．I would be | C．I was | D．I were |
You _____ come earlier. The bus left a moment ago.
| A．would | B．should have | C．may | D．have |