As a result of destroying the forest, a large ________ of desert ________ covered the land.
| A．number; has | B．quantity; has | C．number; have | D．quantity; have |
27. If we ________ to him, he will make further demands.
| A．give up | B．give away | C．give out | D．give way |
26. Parents always tell us not to stay ________ there is danger.
| A．in which | B．the place where | C．at the place | D．Where |
25. – Tom, it's too late. Our son ________ be back.
– Don't be anxious. I dare say he ________ have some extra work to do.
| A．can; must | B．will; might | C．should; must | D．must; may |
24. More than one ________ the people heart and soul.
| A．officials have served | B．official has served for |
| C．official has served | D．official have served for |
23. Tom had to be told two or three times ________ he could remember what the teacher said.
| A．before | B．when | C．until | D．As |