题目内容
单项选择
-How many____ are there over there?
-There are fifty.
-There are fifty.
[ ]
A. student
B. sheep
C. boy
D. girl
B. sheep
C. boy
D. girl
B
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单项选择
How can you reduce ________?
[ ]
A .a pollution |
B .pollutions |
C .pollution |