All the _______ things need air and water. Without air or water, nothing can stay _______.
A.living; living | B.living; alive |
C.alive; alive | D.alive; living |
I don’t know if I _______ free tomorrow. If I _______, I will go to the bookstore.
A.am; am | B.will be; will be |
C.will be; am | D.am; will be |
Someone is knocking at the door. It _______ my mother. It’s time for her to be back.
A.can be | B.may not be |
C.must be | D.mustn’t be |
The floor is so wet. Let’s _______.
A.stop mopping it up | B.stop to mop up it |
C.stop mopping up it | D.stop to mop it up |
The flood in 1998 washed lots of houses _______ and lots of people _______.
A.on; died | B.off; die |
C.away; die | D.away; died |