—Why did you talk to the teacher after class? —I don't understand ________ during the lecture.
| A．the problem did she tell us | B．how did she say |
| C．that she was talking about | D．what she was teaching |
—Can I look at the menu for a few more minutes before I decide?
—Of course．____, sir．
| A．Take your time | B．It doesn't matter |
| C．Enjoy yourself | D．Make yourself at home |
—Do you regret paying twenty dollars for the dictionary?
—No．I ____ twice as much for it．
| A．gladly paid | B．should gladly pay |
| C．would gladly have paid | D．had gladly paid |
I am wondering ____ he expects will win the gold medal in Men's Single．
| A．whom | B．who | C．which | D．what |
The witness who appeared in court ____ to speak out the truth instead of covering it up．
| A．encouraged | B．has been encouraging |
| C．was encouraging | D．had been encouraged |
Several years ago they found in England a tomb of a man ____ from around 2,300 B．C．
A．dated B．dating C．dates D．to date