After John stayed in Shanghai for a couple of days, he got the impression______ the city was very fascinating.
Butterflies________a sweet liquid produced by flowers,which bees and other insects collect. (2013·湖北,25)
According to the law,all foreigners have to________with the local police within two weeks of arrival. (2013·湖北,24)
Team leaders must ensure that all members ________ their natural desire to avoid the embarrassment associated with making mistakes. (2013·江苏,29)
________,John returned to school from his hometown.
—We didn’t find the Blacks ________ the lecture.—No one had told them about ________ a lecture the following day.