When he bought the products in a large quantity, he was angry to find they were _____ the samples given to him.

So many problems! I’m tired.—You should try tothem by yourself. You are not a child any longer.

People all around the nation were so excited upon the return of the three astronauts. [ ]

China develops so fast. —That’s true. It ______ a lot already.

The tall man ____ wears a new coat is our new English teacher, isn’t he?