—You look very pale. You __________ very tired. — I didn ’ t sleep at all last night.
A、mustbeA
暂无解析
Mary’spronunciationismuchbetterthan__________inherclass.
I_________whenIwasayounggirl.
Thespeechisstronglyimpressed________mymemory.
Forsomereason,it__________alldayoverthetwoweeks.
AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.