一、倍数增减的表示法
1) Force N1 _______________(比力N2大2.5倍).
2) This substance _______________(反应速度是另外那种物质的三倍).
3) The earth _______________(是月球大小的49倍).
4) The landlord _______________(想将租金提高三分之一).
5) They _______________(计划将投资增加一倍).
二、时态
1) Be quick, _______________(否则等我们到达教
结束了).
2) When she got home, _______________(孩子们已经睡着了).
3) When I prepare for the college entrance examination, _______________(我姐姐将在海边度假).
4) I_______________(一上午都在修改我的简历).
5) Do you often go on holiday? _______________(不,我已经有五年没有度假了).
6) He joined the army in October, 2001. _______________(他参军已五年了).
三、被动语态
1) The blackboard and chalk _______________(正在被电脑和投影机所取代).
2) The book _______________(到今年年底就将已出版).
3) Computer models _______________(可以用来演示细胞工作的方式).
4) When the bill of fare was brought, _______________(我惊呆了,价格大大超出了我的预料).
5) _______________(必须立即采取有效措施)to eliminate sandy storms.
四、情态动词
1) The phone is ringing, _______________(但是没人接听。她一定不在家).
2) I can’t find my sunglasses. _______________(我可能昨天落在咖啡店里了).
3) You screamed in your sleep last night. _______________(你一定梦见什么可怕的东西了).
4) It’s a pity. _______________(你本应该邀请她来参加你的毕业典礼的).