She thought I was talking about her daughter, _____ in fact, I was talking about my daughter.
| A．when |
| B．where |
| C．which |
| D．while |
— __________ when has the country been open to international trade?
— 1978, I suppose.
| A．Since | B．In |
| C．From | D．After |
— I think he is taking an active part in social work.
—I agree with you __________.
| A．in a way | B．on the way |
| C．by the way | D．in the way |
I have offered to paint the house __________ a week’s accommodation.
| A．in exchange for | B．with regard to |
| C．by means of | D．in place of |
I _____ you yesterday, but you weren’t in.
| A．rang | B．rang to |
| C．rang with | D．rang to |
—I usually go there by train．—How about _____ by boat this time？
| A．going | B．to go | C．went | D．go |