1. C destruction ( sự phá hoại : danh từ )

2. B shouldn't tell ( Nó là một bí mật, vì vậy bạn không nên nói với Tom )

3. D consumption ( sự tiêu thụ : danh từ )

4. C be cleaned ( bị động với "must" : S + must + be + Vpp )

5. A will get ( if 1 : If + S1 + Vs/es, S2 + will + Vinf )

1. Mass tourism has contributed to the _________ of the enviroment.
A, destroy 
B, destroying
C, destrucion
D, destroyment
2. It's a secret, so you _________ Tom
A, should tell
B, shouldnn't tell
C, not tell
D, might tell
3, The _______________ of fossil has gradually increased in many countries
A, consumer
B, consume
C, comsuming
D, consumption
4, This room must ___________ by her every day
A, be cleaning
B, cleaned
C, be cleaned
D, clean
5, If she speakes English well, she _____________ a good job 
A, will get
B, would get
C, gets
D, got