—What are you busy with?—The conference _____in our city next week, as you know.
I am surprised that you should have been fooled by such a simple ______.
In our class there are 60 students, ________ a quarter wear glasses.
Harry, you can’t go out since you haven’t finished your homework; ______, there is going to be a heavy storm.
--- What a beautiful day! --- Yes, it is _______ that I’d like to take a walk.
—How about going out for a picnic on Sunday morning? —Hmm, ____.The weather is quite warm these days.