这些空怎么填?用括号里的词,填在横线上.

这些空怎么填?用括号里的词,填在横线上.
1.he can ______ ( speak,speaks,speaking) english.2.so he often _____ （ give ,gives,giving) orders ____ ( for ,at ,in ) english.3.we try ____ （ follow,following,to follow ) ____ （ he ,his ,him ) 4.we like ____ ( he ,him ,his ) .5._______ ( there ,they' re ,their ) so interesting .