—Who has taken my pen away?
—__________. He was here a moment ago.
| A．It must be Li Ping | B．It is Li Ping take |
| C．Li Ping is | D．Li Ping must take |
"The interest ____ be divided into five parts, according to the agreement made by both sides." declared the judge.
| A．shall | B．should | C．must | D．may |
A good teacher must be able to hold his students’ attention ____ he reaches the end of the class.
| A．when | B．after | C．until | D．unless |
Though the novel had a happy ending, the readers were left ____.
| A．to be satisfying | B．unsatisfying |
| C．unsatisfied | D．being satisfied |
I would appreciate ______ very much if you could give me some suggestions.
| A． this | B． it | C． that | D． you |
Good news! The price of all those second-hand goods is ______ before.
| A．30% as lower as | B．30% lower than |
| C．lower 30% than | D．as 30% low as |