—Whywas Professor Wang unhappy recently?
—Because the valuable watch __________ to him waslost.
| A．belonged | B．belongs | C．belonging | D．was belonged |
I don’t think he could have done such a stupid thing last night, _____?
| A．did he | B．could he |
| C．do I | D．hasn’t he |
A man may usually be known by the books he reads _____ by the friends he keeps.
| A．as usual | B．as soon as |
| C．as if | D．as well as |
Although he is often tired _____ his work, he is never tired _____ his job. In fact, he enjoys it.
| A．of…with | B．with…from |
| C．with…of | D．at…with |
— Is your mother still a teacher?
— ______.
| A．Yes, she was | B．She didn’t use to |
| C．No, but she used to | D．No, but she used to be |
Because of the bad weather, my mother ____ and lay in bed. She ______ for a week.
| A．has been ill; was ill | B．fell ill; has fallen ill | C．fell ill; has been ill | D．fell ill; is ill |