---Alice had an accident on her way to school yesterday．
--- ____________? She is always careful．
| A．How come | B．Why not |
| C．So what | D．What for |
Mother told her son that it would be half a year ______ she could come back from American.
| A．since | B．before | C．that | D．when |
Much to my _____, my family were all safe and sound in the fierce flood.
| A．surprise | B．disappointment | C．relief | D．shelter |
Some animals in _____ wild are now in ______ great danger of disappearing because of human activities.
| A．the, / | B．a, a | C．the, the | D．/, the |
--- Have you moved into the new house?
--- Not yet. The walls ______.
| A．were painted | B．were being painted | C．are painted | D．are being painted |
---How could you say that?
--- ______. I didn’t mean to hurt you.
| A．I’m really sorry | B．Excuse me | C．That’s all right | D．I won’t regret |