Either the boy or his sister must have dinner here.
| A．his | B．her | C．their | D．theirs |
Du Vigneaud , a well-known American scientist,the Nobel Prize
chemistry in 1955.
| A．accepted; for | B．received; on | C．won; for | D．gained; for |
By the time hethe railway station ,the train.
| A．reached ; left | B．reached ; had left |
| C．arrived ; had gone | D．got ; had been away |
—Where is Mr Smith?
—Hein prison for more than two months.
| A．has been | B．has been sent | C．has been thrown | D．has been put |
1. —Haven’t you heard the news?
—What news?
—Some of the workers are onmarch while others onstrike.
| A．the；the | B．the;/ | C．/;the | D．/;/ |
The visiting minister expressed his satisfaction with the talks, _________ that he
had enjoyed his stay here.
| A．having added | B．to add | C．adding | D．added |