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外语
As a source of Apower, electricity Bhad no rival because it is Cclean, silent, and Dcan be turned on and off instantly.
As a source of Apower, electricity Bhad no rival because it is Cclean, silent, and Dcan be turned on and off instantly.
admin
2019-07-01
65
问题
As a source of A
power
, electricity B
had
no rival because it is C
clean
, silent, and D
can
be turned on and off instantly.
选项
A、
B、
C、
D、
答案
B
解析
Had is past tense; a present-tense verb is needed with the simple present verb is in the second clause. Correction: has.
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