问题补充：
He speak on TV tonight.
A. was to
B. is to
C. will be
D. has
答案：
A. was to
(答案→)B. is to
C. will be
D. has
解析：be to do 结构用以表示按计划或安排将要发生的行为。
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时间：2019-12-16 22:01:20
He speak on TV tonight.
A. was to
B. is to
C. will be
D. has
A. was to
(答案→)B. is to
C. will be
D. has
解析：be to do 结构用以表示按计划或安排将要发生的行为。
