“Where is Mother.” “She is in the kitchen. She _______ the housework all morning.”
| A．is doing | B．was doing |
| C．has done | D．has been doing |
There are various things on sale, so you can choose____ interests you.
| A．whoever | B．no matter who |
| C．whatever | D．no matter what |
Our English teacher told us to find out ____ the differences between American English and British English lie.
| A．where | B．how | C．what | D．which |
The manager, ____ it clear to us that we should stick to the plan, left the meeting room.
| A．who has made | B．having made |
| C．made | D．making |
Could it be in the room____ we had a talk last night ____ you left the key?
| A．that; where | B．where; when |
| C．where; that | D．in which; where |
—I failed again. I wish I ____ harder.
---But you ____.
| A．had worked; hadn’t | B．worked; don’t |
| C．worked; didn’t | D．had worked; didn’t |