Helen is on time for everything. How ______ it be that she was late for such an important interview?
| A．might | B．can | C．must | D．may |
is reported in the newspaper, children in the US today spend five times more money than their parents did when they were young.
| A．It | B．As | C．That | D．What |
— Could you do me a favor to carry the baggage?
— ______.
| A．Yes, I could | B．With pleasure |
| C．It’s my pleasure | D．Great |
Mr. Wang would have continued to lead _____ poor life instead of changing his lifestyle if he hadn’t met Mr. Smith by _____ chance who was a businessman.
| A．the; a | B．a; the |
| C．a; / | D．/; the |
---Do you want to come with us?
---No, I would rather ______ at home than _____ with you.
| A．to stay; go | B．to stay; to go |
| C．stay; go | D．stay; to go |
Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.
| A．what; which | B．that; what |
| C．that; which | D．what; that |