情态动词
p167
As it turned out to be a small house party, we ______ not have dressed up so formally. 🟨
answer
need
He is very rich, so he ______ have made a fortune. ✅
answer
must
I ______ have provided you with the funds. Why didn't you ask me? ❌ 无从下手
Aunt Sharon looks sleepy. She ______ have gone to bed very late last night. ✅
answer
must ✅
or (might/may)
—Where is my cell phone? I can't find it. ✅
—Well, you ______ have put it somewhere.
answer
must ✅
or (might/may)