undred of the tourists were savedfrom danger in Taiwan, but the rest ______ still missing．— If only the travel agency ________ moremeasures to prevent such accidents．

Look at that girl. Is it Susan–No, it _______ be her. She has gone backto her home town .

I’m learningto play ping-pong. — _____ . It’sa popular game. I like it very much.

She ought to stop work; she has aheadache because she ____ all day long

He has been caught _________ the rain and is wet _________ the skin