---Shall we go there by boat for a change?
---______.
| A．You say | B．It is up to you | C．It is hard to say | D．It is easy to tell |
—I like your new shoes!
—Thanks．I had to try on almost a dozen pairs ______ I decided to get them．
| A．as | B．when | C．after | D．before |
Unemployment in USA is likely to remain high in 2011, and _______ for the next few years.
| A．possibly | B．necessarily | C．gradually | D．normally |
I didn’t make sense of _______poem until I read it _______ third time.
| A．the; the | B．a; the | C．the; a | D．a, a |
—He failed in the exam again.
—He __________his teacher’s advice.
| A．should not have followed | B．should not follow |
| C．mustn’t follow | D．should have followed |
When firstto the market, these products enjoy great success.
| A．introducing | B．introduced | C．introduce | D．being introduced |