He has collected ___ sixhundred dollars

Is it my age ________the boss minds—I’m afraid so. He will consider ________necessary to have an experienced assistant.

The final exam is coming, but my daughter’s Chinese is not good.-Don’t it. You can ask her to do more reading and I can also help her.

In order to stop his wife from attending the party, he took away the key to their car _____.

There is something wrong with your bike,isn’t there—Yes. I’ll have it tomorrow.