He made another wonderful discovery, （ ） of great importance to science.

We don’t doubt _____ he can do a good job, concerning his experience.

Most Chinese like tea, but some prefer coffee _____tea.

_____ breaks the law will be punished sooner or later.

We mention the importance of giving up smoking once and again, but hardly ______ it.

When I saw the expression on his face, I realized he is （ ） agreement with me.

You needn’t introduce him to me. I’ve met him on several _____.

When we arrived at the airport, we were told our flight （ ）.

_____ more time，he’ll make a first-class tennis player sooner or later.

She is very （ ） to his ugly appearance.

I recognized John （ ） he entered the room.

—Where is my cell phone? I can’t find it. —Well, you ______ have put it somewhere.