问题
选择题
He ________ a doctor when he ________ up. [ ]
A. is, grow
B. is going to be, grow
C. is going to be, grows
D. is, growing
答案
答案：C
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He ________ a doctor when he ________ up. [ ]
A. is, grow
B. is going to be, grow
C. is going to be, grows
D. is, growing
答案：C