While we are developing agriculture andindustry, we must prevent the earth ______.

My name ____ Jack. Liu Ying and Sun Mei ____ my friends.

Have you finished your report yet —No, I’llfinish it in _______ ten minutes.

I often watch TV plays. What about you—–I ______watch them. They are long and boring.

Collier once said, “A singleidea—the sudden flash of a thought — __________be worth a million dollars”