共找到 558 与a/an/the 相关的结果，耗时41 ms
The first thing George did at the training school was ______.A. to take an experienced pilot in a planeB. to be taken up into the air in a plane by a
A good way to train an animal to do something quickly is to_____.A make the action easyB praise it in wordsC reward it with foodD weaken its motivati
What does the underlined phrase “an instant hit” (Para. 3) mean?A a fast blowB a sudden beatC a big strikeD a quick success
What activities can you participate in during the trip?A Working as an advisory.B Learning German language.C Travelling with a guest familyD Enjoying
Today the energy problem becomes critical. It ____ an immediate solution.A calls on B calls for C calls up D calls at
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