We spend as much time as we can _____ English.
I’m afraid I can only make a small contribution this time.—____.We really appreciate your assistance.
I am not going swimming tomorrow afternoon. —-_____. I have to clean up my bedroom.
Why are you late, Jim?—Because there _________ a lot of traffic when I came here.
Look ! There’s ______ football under the teacher’s desk. Let’s play ________ football, OK?