—Why do you look so worried?
—Fred left the company half an hour ago. His work _______ unfinished since.
| A．left | B．was left | C．has left | D．has been left |
She felt sorry that she had disturbed the ______ calmness of a man she respected.
| A．regular | B．normal | C．usual | D．common |
______ in the school regulation that students shouldn’t use cell phones in the campus．
| A．What requires | B．What is required | C．It requires | D．It is required |
Practisig Chinese TAJI can not only ________ one’s strength, but also develop one’s character.
| A．bring up | B．take up | C．build up | D．pull up |
——You don’t go to that supermarket quite often,do you?
——No，I only go there________because it’s too far away from my house.
| A．eventually | B．constantly | C．occasionally | D．frequently |
－Is there any possibility ______ you could pick me up at the airport?
－No problem.
| A．When | B．that | C．whether | D．what |