--Kate wants to know if you      a picnic next Sunday.--Yes. But if it       , we’ll visit the museum instead.

—Do you remember          he came?—Yes, of course. He came by train.

The stamp on the letter is an art, from _______ we can get a lot of cultural knowledge.

The problem ______ many children,especially girls,have ______ school is getting more and more serious.

Though I’ve tried very hard to improve my English, by no means ___________with my progress.