问题补充:
I hear Mr. Smith was writing a story last year and he still .
A. do
B. does
C. is
D. am
答案:
@@A. do@@B. does@@(答案)C. is@@D. am
解析:从题意分析,本题的空格处应用现在进行时。而本题的现在进行时的助动词应用is。
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