单选题
It’snecessary______ustokeepourpetscleaneveryday.
题目答案
B
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It’snecessary______ustokeepourpetscleaneveryday.
---Wouldyouliketogooutforawalkwithus?
---_____,butImustfinishmyhomeworkfirst.
IsTomatschooltoday?No,He’sathome______hehasabadcold.
______hardworkitis!
Mrs.Whitehas_____thatsheisnotabletogetajob.
Peopleinsomeareasdon’thavetopayfortheir______.
Dr.Yangworked______threedaysago.
Mr.Greenisusedto_________twoapplesafterluncheveryday.
Theoldmanlivesinavillage_______,butheneverfeels________.
I’veneverbeenoutofChina___________.Whataboutyou?
—Icametoyourofficeyesterdaymorning,butnobodywasin.
—Oh,we__________ameetinginthemeetingroom.