There are some police cars in front. What do you suppose _____?
A
暂无解析
Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
You ____ him so closely; you should have kept your distance.
The professor said he could talk on _____ interested the audience.
Tina _____ have known the truth, or she would have told us.
Professor Wang , _______ for his informative lectures, was warmly received by his students.