题干
---Do you want a lift home?
---It’s very kind of you, but I have a much late in the office. I overslept this morning because my morning clock _______.
---It’s very kind of you, but I have a much late in the office. I overslept this morning because my morning clock _______.
A：doesn’t go off
B：won’t gone
C：wasn’t going off
D：didn’t go o
答案(点此获取答案解析）
D
④CH≡CH ⑤NH3 ⑥CH4
