问题
选择题
We do a lot _____________ interesting things _____________ science class. [ ]
A. on, in
B. for, on
C. of, in
D. an, on
答案
答案：C
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We do a lot _____________ interesting things _____________ science class. [ ]
A. on, in
B. for, on
C. of, in
D. an, on
答案：C