The novel written by the author ________ best, but five years ago no one could have imagined how great a role he ________ in the literary world.
| A．sells; was to play | B．was selling; was playing |
| C．sold; had played | D．is sold; is playing |
Other genetic similarities suggested they all ________ a single, common ancestor about 300 years ago.
| A．had | B．have had | C．have | D．had had |
Prices of daily goods________through a computer can be lower than store prices.
| A．are bought | B．bought |
| C．been bought | D．buying |
．—That must have been a long trip.
—Yeah, it________us a whole week to get there.
| A．takes | B．has taken | C．took | D．was taking |
We________on this project for four hours.Let's have a rest.
| A．are working | B．have been working |
| C．worked | D．had worked |
—You've left the light on.
—Oh.So I have.________and turn it off.
| A．I'll go | B．I've gone | C．I go | D．I'm going |
It is reported that many a new house________at present in the disaster area.
| A．are being built | B．were being built |
| C．was being built | D．is being built |
—I'm not finished with my dinner yet.
—But our friends________for us.
| A．will wait | B．wait | C．have waited | D．are waiting |
I________all the cooking for my family，but recently I've been too busy to do it.
| A．will do | B．do | C．am doing | D．had done |
Let's go out now. It ________ any more.
| A．didn't rain | B．doesn't rain |
| C．won't rain | D．isn't raining |