单选题He decided to devote all his time and effort ______ scientific investigation.
单选题There were many people present and he appeared only for a few seconds, so I only caught a ______ of him.
单选题Move up a little. I haven't any ______ to sit.
单选题______, gold is treasured not only for its beauty but also for its utility.
单选题The secretary searched for hours, but ______ be found. A. everywhere the missing papers could not B. nowhere could the missing papers C. nowhere the missing papers could D. anywhere could the missing papers
单选题If you have trouble ______ the poems, the notes on the mar gins will help you.
单选题Take the medicinenow. I believe it will______your pain.A. releaseB. reliveC. rejectD. relieve
单选题The most important ______ of his speech was that we should all work whole-heartedly for the people.
单选题The robber had escaped and was nowhere to be found when the police ______. A. arrived B. has arrived C. arrive D. have arrived
单选题The autumn air felt ____ so he went to fetch a coat.
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单选题I (would go to) visit that beautiful lake (but) I (couldn't) get (in touch) with you while I was in Boston.
单选题The president went on to say he was ______ a new strategy, but not everybody was convinced. A. chasing B. running C. pursuing D. tracing
单选题If you don’t want to be down and out, you’d better try your best to _____ the fast pace of modern society.
单选题It ______ around nine o'clock when I drove back home because it was already dark.
单选题After being tested in many ways, this newly-designed machine will ______ in the near future.
单选题(However) (it is) you have heard, (you'd better) ask him about it (in) person.
单选题I’m sorry, but there are _____ for Sunday’s concert.
单选题No sooner (had) the hikers (set out) on their trip (as) it began to rain (heavily).A. hadB. set outC. asD. heavily