I’d like to give thanks to Mrs. Chen, without help I wouldn’t have got out of my trouble.
--- Who do you think ___ the book here? --- It may be John. He was sitting here all the morning.
David can speak idiomatic American English and yet, _____ English, he doesn't know it at all.
--- How I wish we studied ____ there are fewer exams! --- You’re joking!
--- Could you introduce me a high quality car? --- My pleasure. ____ well even on wet roads, this kind of car is very popular.
--- Where are the students ? How could they keep us waiting for so long? --- They started an hour ago and they____ be here in fifteen minutes, I think.