题目内容
(请给出正确答案)
[主观题]
Only when I watched TV last night ______ what ______.A.I learned / was happeningB.did I le
Only when I watched TV last night ______ what ______.
A.I learned / was happening
B.did I learn / had happened
C.learned I / had happened
D.did I learn / would happen
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