“Do you have to leave now? ” “I’m sorry, but I really ____.”A. can’t B,have C.should D.must
—— How did you find your visit to the museum? —— I thoroughly enjoyed it. It was____interesting than I had expected.
Qingdao is _______ beautiful city in summer.
When you drive home, you can’t be_______careful.
—— Is the bus stop far from here? —— It’s a quarter’s walk, ________.
I’ve got ______work to do on a ________ cold day.