___________ (3)
A.put
B.keep
C.hold
D.place

___________ (5)
A.search
B.pursuit
C.lookout
D.watch

___________ (7)
A.manner
B.custom
C.approach
D.style

___________ (8)
A.minimum
B.lowest
C.smallest
D.least

___________ (10)
A.biggest
B.highest
C.widest
D.largest

A.occupation
B.individua
C.competitive
D.documentary

A.submarine
B.technological
C.biodiversity
D.picturesque

He had to act immediately; ____________, it would have been too late.
A.nevertheless
B.consequently
C.otherwise
D.however

Nam : "____________" - Susan: " Never mind."
A.Thank you for helping me finish my work.
B.Sorry for steeping on your toes.
C.Congratulations! How great!
D.Would you like to go to the cinema?

Greenhouse gases cause the warming up of the Earth because they ______.
A.are unusual gases
B.are emitted by car engines
C.do not add to atmosphere pollution
D.trap heat from the sun