We have decided to try ________ best to raise more money for the local charity.

_______ of the watches would you like?—I’ll take ________ of them, so I can give one to my sister.

Some of my classmates don’t like math because they think it’s boring.— I don’t like it, _____. I think it’s too difficult.

I’m going to Beijing ______ June 12th. [ ]

Do you think if Tom the work well?—I think he will if he his best.