If _________, the bird flu would produce a powerful poison that would kill the patients.A. not treat B not treated C untreated D. Both B and C
.Mr. and Mrs Scott prefer a trip in a small town to _____in so large a city as New York.
----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.