No sooner ______ down on bed ______ the telephone rang.
The accident that happened at an oilfield __________ the southeast coast of the USA has caused great damage to the environment.
The project alongside with the experiment we had once devoted so much time __________ perfectly.
-Were you busy last week-end?-Very. Rather than __________ time playing cards as usual, I devoted every effort to __________ an advertisement.
__________ to improve the students' sight, the eye exercises are done in schools nation-wide.
Our hotel is a four-star hotel, which is located __________ Beihai Park __________ Beijing.