Please do me a favor —_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.
Visiting _______ Great Wall is ________ unforgettable experience to me.
---- Do you surf the Internet a lot? ---- Well,_______, I’m too busy with work to surf the Net.
with so much homework to do,David told his sister_____so much noise.
it was because of his kind nature _______I fell in love with Peter.
Kate is really young for the job, but, on the other _____, she is well trained.