(2013·重庆部分学校高三联考)At the edge of the grass，there's a sign saying“________ the grass”．
#11506
A
Keep up
B
Keep away
C
Keep off
D
Keep back
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________ children whose parents had died in the earthquake________ sent to live with families in other cities.
#13691
A
A great number of ; was
B
The great number of ; was
C
A great number of ; were
D
The great number of ; were
(2009·陕西高考)I still remember________to the Famen Temple and what I saw there.
#11367
A
to take
B
to be taken
C
taking
D
being taken
At last they got the letter they____________．
#13977
A
haveexpected
B
wereexpecting
C
hadexpected
D
hadbeenexpecting
Carbon dioxide, which makes a ______ between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
#13856
A
difference
B
comparison
C
connection
D
barrier