I hate traveling by air ______ you usually have to wait for hours before the plane takes off.
| A．because | B．though | C．until | D．unless |
The news came as no surprise to me. I for some time that the factory was going to shut down.
| A．knew | B．had known | C．have known | D．know |
He will come to see you the moment he his work.
| A．will finish | B．finishes | C．would finish | D．had finished |
The truck ran down the hill, and the driver _________, according to the local newspaper, to have been killed.
| A．was reported | B．was reporting | C．reported | D．had been reported |
—Look out, there is a bus ahead.
—Oh, dear, _________
| A．I am not noticing it | B．I haven’t noticed it | C．I wasn’t noticing it | D．I had not noticed it |
—Is there anything wrong with you, Jake? You look so pale．
—I feel very tired．I _____on this boring paper every day so far this month．
| A．work | B．have been working | C．had been working | D．am working |