A.0,784.
B.3,92.
C.1,68.
D.1,96.

A.14%.
B.19%.
C.8%.
D.9%.

A.45 cm.
B.30 cm.
C.60 cm.
D.20 cm.

A.kính cận
B.kính hiển vi.
C.kính thiên văn.
D.kính lúp.

A.Even though
B.Despite
C.Due to
D.Because

A.the most relaxed
B.the more relaxed
C.more relaxed
D.most relaxed

A.certificate
B.degree
C.licence
D.diploma

A.piece of cake
B.piece of biscuit
C.a glass of milk
D.cup of tea

A.attraction
B.attracted
C.attractive
D.attractively

A.Before they arrive
B.As soon as they arrive
C.By the time they arrived
D.After they had arrived