I don't really work here; I ____ until the new secretary arrives.
----What's the matter with you, Lucy? ----After the long walk, my legs __________and I couldn't go any farther.
It’s crazy of you to spend more time playing computer games than you ______ studying.
Those successful deaf dancers think that dancing is an activity __________ sight matters more than hearing.
There’s no doubt ______ the famous professor will come to give us a lecture.
Almost everyone has his own strengths and weaknesses. It is ________ others are weak that maybe you have a great advantage.