It was never clear ____ the man hadn't reported the accident sooner.
举一反三
- I would have come sooner, but I ________ that you were waiting. A: knew B: didn’t know C: hadn’t known D: don’t know
- The last reported case connected to the ______ of the accident was to be reported Sept. 19, the FDA said. A: outlet B: outbreak C: outrage D: outstreet
- I should never have said that. I wish I _______ that. A: didn't say B: wouldn't say C: hadn't say D: don't say
- I would never have believed it was possible if I （）it with my own eyes. A: didn't see B: don't see C: won't see D: hadn't seen
- Since I ___ to China, I know little about the country. A: have never been B: have been C: hadn't been D: haven't gone