My trousers are too old.I’ll have to buy ____.
| A．a new pair | B．a new one | C．a pair of | D．some new pair |
—Thank you for joining in our conversation tonight.
—_____.
| A．It’s my duty | B．It’s all right |
| C．It’s my pleasure | D．With pleasure |
It was in the street_________ I met Mary yesterday .
| A．that | B．when | C．where | D．what |
Generally speaking, when ____ according to the directions, the drug has no side effect.
taking B. taken C. to take D. to be taken
As we all know, many Chinese words have come into English, ______ typhoon, tofu and kung fu.
| A．for example | B．that is |
| C．such as | D．so as to |
_____ of the students who took part in the military training is 450.
| A．A number | B．A lot | C．Lots | D．The number |