_______(9)
A.required
B.requirements
C.requirement
D.requires

_______(10)
A.inhabitable
B.inhabitability
C.inhabitants
D.inhabitances

_______(5)
A.things
B.them
C.ones
D.others

_________(1)
A.prevented
B.prevention
C.preventing
D.preventors

_________(2)
A.actively
B.action
C.active
D.activities

We spent nearly 3 hours waiting outside the station, then out ______________.
A.the star came
B.did the star come
C.came the star
D.be the star coming

Larry drove all night to get here for his sister's wedding. He ___ exhausted by the time he arrived.
A.must have been
B.could be
C.ought to be
D.will have been

Not only _____ the exam but she also got a scholarship.
A.did she pass
B.she passed
C.she has passed
D.has she passed

We are all responsible ....................keeping the environment clear and clean
A.with
B.for
C.from
D.about

Tuan's parents was disappointed ...............him because he failed the final test.
A.with
B.in
C.for
D.about