_________she first heard of the man referred to as a specialist.
| A．That was from Stephen |
| B．It was Stephen whom |
| C．It was from Stephen that |
| D．It was Stephen that |
He is more than happy to keep you ____ company, which is just out of _____ question.
| A．a; / | B．a; the | C．the; the | D．/; / |
---Shall we go to the art exhibition right now?
--- ____________.
| A．It’s your opinion | B．I don’t mind |
| C．It’s all up to you | D．That is your decision |
—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 first to the market, these products enjoy great success.
| A．introducing | B．introduced | C．introduce | D．being introduced |
It is uncertain ______ side effect the medicine will bring about, although about two thousand patients have taken it.
| A．what | B．that | C．how | D．whether |