His idea was such a good one ______ we all agreed to use it.

The situation is hard to ___, because he isn’t a man easy to ____

We must ___ to the public the simple fact that drug are dangerous. [ ]

Tom _____have come in person. He came such a long way just to tell us the result. [ ]

How do you feel your travel to Hainan?—________, I enjoyed it very much, although the weather of some days was unpleasant.[ ]