All of our rain forests ________unless we find some ways to stop people from cutting down trees.
A.will be destroyed
B.destroy
C.were destroyed
D.will destroy

Two thieves ________at a bus stop were arrested yesterday.
A.having waited
B.were waiting
C.wait
D.waiting

Give the correct form of verbs given
The house where the dead man was found is being guarded by the police to prevent it from (enter) ........... .
A.to enter
B.being entered
C.entering
D.enter

Give the correct form of verbs given
They have lived in that house since it (build) ............. .
A.had been built
B.was built
C.has been built
D.is built

Give the correct form of verbs given
Mary (work) ........... with her own computer when she was a student at university.
A.works
B.had worked
C.has been working
D.worked

Multiple choice
It was raining very ____________ so I took my umbrella.
A.wet
B.badly
C.hard
D.firmly

Multiple choice
Hurry up or you'll be late _____ school.
A.on
B.in
C.to
D.for

Multiple choice
_____ the students in my class enjoy taking part in social activities.
A.Most of
B.Most
C.Many
D.The number of

Multiple choice
Don't be afraid. This snake is _____ .
A.harm
B.harmful
C.harmless
D.unharmed

Multiple choice
Fortunately, the plane landed _____ after the violent storm.
A.safe
B.safely
C.unsafe
D.safety