I often hear Tom _________ in his free time. He really likes singing.
A.to sing B.sing C.singing D.sings
— _________ is the weather today? — It is _________.
A.What; rainy B.How; rain C.What; rain D.How; rainy
If there is __________ living space, there will be _________ wild animals.
A.fewer and fewer; less and less B.fewer and fewer; fewer and fewer
C.less and less; fewer and fewer D.less and less; less and less
— Sandy, I called you at 9:00 last night, but no one _________ the phone.
— I am sorry. We _________ a birthday party for Jimmy.
A.answered; were having B.was answering; were having
C.was answering; had D.answered; had
________energy，turn off the hot water after you take a shower．
A.Save
B.Saving
C.Saved
D.To save
— Is there any meat in the fridge? I want some for dinner.
— No, there is _________ left, and _________ of us has any time to buy any.
A.none; none B.nothing; nobody
C.none; nobody D.nothing; none
