用括号内所给动词的正确形式填空.(请注意时态和语态两个方面噢)
问题描述:
用括号内所给动词的正确形式填空.(请注意时态和语态两个方面噢)
1.What______your computer_____(use)for?
2.A new airport____(build)in 1992.
3.What____(must do)before you join the charity walk?
4.It's dark.The seats____(can not find)easily
5.Now skills and knowledge_____(teach)to these workers last time
6.Wild animals____(protect)by people in China
答
1.is used
2.was built
3.must do
4.can't be found
5.are tought
6.are protected