Could I speak to _______ is in charge of International Sales please?
| A．who | B．what | C．whoever | D．whatever |
Who will be ___________ the company when the manager (经理) is out?
| A．in charge of | B．in the charge of |
| C．take charge of | D．take the charge of |
________ is a very popular sport in summer.
| A．Swim | B．Go to swim | C．Go swimming | D．Swimming |
John failed in the exam, ________he had prepared a lot for it before.
| A．as | B．when | C．once | D．although |
—______ have you studied English?
—For six years.
| A．How long | B．How soon |
| C．How often | D．How far |
Nuclear radiation is said __________ the biggest health challenge in Japanese Earthquake over the past few months．
| A．being | B．to be | C．to have been | D．that it is |