He said he_____ to my home in aweek.

Scientists warn us _____ the need tokeep an eye ____ the greenhouse effect.

Have you finished your experiment report, Jane?— Oh, my God I’ve _____ forgotten all about that

Professor Smith, some students want to have a talk with you. ___ they wait here or outside?— Show them in now, please.

Does your brother walk ______home after _____ school every day