Synthetic products are made from chemicals or artificial substances.




A.natural
B.made by machine
C.man-made
D.unusual

A.apply
B.maximum
C.cactus
D.national

__________ (64)




A.encounter
B.involve
C.reveal
D.introduce

According to the passage, the capacity for the storage in the brain ___.




A.has a limited combination of relationships
B.is not influenced by repetition
C.can be understood by examining the physiology of the brain
D.is stimulated by patterns of activity

Sound




A.energy
B.generous
C.category
D.suggest

Rewrite the following sentences
Would you please give me a hand?




A.Would you mind giving me a hand?
B.Would you mind give me a hand?
C.Would you mind to give me a hand?
D.Would you mind having given me a hand?

Give the correct form of verbs given
Viet Nam ..................(be) a country which exports a lot of rice.




A.is
B.will be
C.was
D.has been

Please remember to _______the lights as you leave the room.




A.get out
B.go out
C.turn off
D.set off

The longer he waited, _____impatient he got.




A.the more
B.better
C.more
D.the better

He is very _______because he is concerned only with his own interests and feelings.




A.helpful
B.selfish
C.confident
D.grateful