1 . 用情态动词或时态填空
1. I didn’t arrive on time, otherwise I _______ missed the first bus.
2. —Did you say that there were only ten tickets? There ________be twelve.
—I said it was twelve.
3. If I _______ plan to do anything I wanted to, I’d like to go to Tibet and travel through as much of it as possible.
4. —What does the sign over there read?
—“No person ____________ smoke or carry a lighted cigarette, cigar or pipe in this area.”
5. No one thought that he could fly over the Antarctic, but Byrd________ do it by making his plane light.
6. The ground is wet. It_________ have rained last night.
7. Tom ought not to _________（tell）me your secret, but he meant no harm.
8. He might _________（give）you more help,even though he was very busy.
9. The old man ________ have a smoke under a big tree every afternoon after he finished his farm work.
10. He daren’t speak English before such a crowd, ________ he?