Has John come ________—-Yes. He has _________ been here for 10 minutes.

The parents suggested _____ in the hotel room but their kids were anxious to camp out during the trip.[ ]

The professor_____ out the project made a comment on the report.

____the suggestions offered above, and you will look and feel much better in no time at all!

－ I lent mybike to Li Lei. May I ____________ yours, Mary－ Certainly.Here is the key.