The students expected there ______ morereviewing classes before the final exams

I made a promise to myself________this year，my first year in high school，would be different.(2012·浙江，4)

Though the aerospace industry has made greater progress in China, the scientists will not _________ themselves ___________ this status.

The police were trying to _____ where the drug dealers were _____ it suddenly dawned upon themthat they might be hidden somewhere 10 miles within the border between the two countries. [ ]

－There is _____________ with my fridge.－I’m afraid you have to ask someone to check it.