________(42)
A.circumstances
B.occasions
C.incidents
D.situations

__________is the existence of a large number of different kinds of animals and plants which make a balanced environment..
A.extinction
B.biodiversity
C.habitat
D.conservation

- Kate: “ How lovely your cats are!” - David: “ ____________”
A.Really? They are
B.Thank you, it is nice of you to say so
C.Can you say it again
D.I love them, too

Peter was ejected after committing five personal _________ in water sport game yesterday.
A.mistakes
B.faults
C.fouls
D.errors

She ran ________ an interesting article about fashion while she was reading the newspaper.
A.after
B.cross
C.away
D.out

It’s a secret. You _________ let anyone know about it.
A.mustn’t
B.needn’t
C.mightn’t
D.may not

When Tet holiday comes, Vietnamese people often feel inclined to ________ their houses.
A.do up
B.do in
C.do through
D.do over

He managed to keep his job_________the manager had threatened to sack him.
A.therefore
B.although
C.unless
D.despite

A.watched
B.promoted
C.invited
D.decided

A.intervention
B.necessary
C.intellectual
D.productivity