At this moment the bell rang, ________ the end of class.
A、announcedC
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Thenumberoftallbuildings__________greatlyinTianjininthelastfewyears.
Idon'tknow_________.
Thespeechisstronglyimpressed________mymemory.
You should try to write __________ eve n when you ’ re busy. As you know, practice makes perfect.
One way to understand thousands of new words is to gain __________ good knowledge of basic word formation.
