It was in Japan that the atomic weapon was used in 1945, and the power ____increased enormously ever since .
After inspecting the building, specialists discovered some faults that otherwise ___________.
Would you _________ her novels as serious literature or mere entertainment?
It was the dream that he would make ______ good fortune on the international stages that made Lang Lang decide to go to the USA for ______ further study.
Students build up their vocabularies byof reading more.
—Hi, is Mary there, please? —.