—You look tired.
—Yes. I _____ non-stop until twelve o’clock.
| A．hasn’t been working | B．wasn’t working | C．was working | D．didn’t work |
The family is faced with lots of trouble, _____ the house problem is the worst.
| A．which | B．with which | C．That | D．of which |
_____ great progress we have made, we should not be conceited.(自大的)
| A．Whatever | B．How | C．However | D．What |
Entering the garden, I found it ____ with ____ leaves.
| A．covering; fallen | B．covered; falling | C．covering; falling | D．covered; fallen |
The old man made ______ clear that he would retire soon.
| A．that | B．this | C．it | D．them |
After a few hour’s drive, they reached ____they thought was the place they had been dreaming of.
| A．that | B．where | C．what | D．which |