No life can exist without the sun. It light and warmth.
A. sends off
B. sends out
C. sends away
D. sends for
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If you haven’t a compass, use the star to you.
A. tell
B. remind
C. guide
D. show
Though a foreigner, she___________ a good knowledge of China.
A. acquires
B. knows
C. understands
D. has
Most of our earth covered by water.
A. are
B. is
C. was
D. were
The population of the world still now.
A. has; grown
B. will; grow
C. is; growing
D. is; grown