对于夹板或安全销必须安装_______。

I think the boy won the first prize by ________ luck, not by his ability.

I have a ________ throat. I guess I have a cold.

The residents left their homes _______ when ordered to get on the bus to go to a quarantine hospital.

The green leaves ________ more beautiful after the rain.

He declined my invitation ________ without hurting my pride.

Because nobody opposed the plan, the meeting went on ________.

The traffic was running so ________ that it took me less than two hours to travel from Taichung to Tainan.

Go ________ down the road, and you＇ll see the post office on your left.

Originally, he was believed to be a gentleman, but ________, he was proved to be a hypocrite.

When they hear SARS, most people＇s initial _______ was fear.