middle school students took part in the essay writing competition.A. Thousands of B. Thousand of C. Thousand
Mike and I _______ net-friends. We talk on-line every week.
—Which car is _______, the yellow one or the red one? —The red one, I think.
— _______ does Earth Day come every year? —It comes on April 22.
Lily knows some Chinese, ______ she can read the words on the bottle.
—We’ll have a hiking trip tomorrow, but when shall we meet?—Let’s make it ______half past seven.