I don't know_________.
A、howcanIfinishmyhomeworkontimeD
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Thespeechisstronglyimpressed________mymemory.
Thenumberoftallbuildings__________greatlyinTianjininthelastfewyears.
Atthismomentthebellrang,________theendofclass.
Mr.Smithisingoodhealthnowforitisquitealongtimesincehe__________.
ThisisthefirsttimethatI_________atthemeeting.