—You look very pale. You __________ very tired. — I didn ’ t sleep at all last night.
A、mustbeA
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Thestormdiedawayatlastwiththegoldenwaves__________theshoreinpeace.
You__________putyourcomputerinyourbedroom.
Theshop_________until7o’clock.
AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
Youshouldtrytowrite__________evenwhenyou’rebusy.Asyouknow,practicemakesperfect.