t’s the noise It sounds as if itcomes from upstairs. –______ .It must be thewindow-cleaner working , nextdoor.

This language training programme ____ teenagers whowant to go abroad to study.

Our foreign trade has________greatly in recent years

I find difficult to learn English grammar.—You can do more English exercises.

（题文） you start eating in a healthier way, weight control will become much easier.