Do you have any idea ______ on earth has happened to our friend?
| A．that | B．what | C．as | D．which |
Mr Smith suggested the problem worth paying attention to ________ at the meeting.
| A．should discuss | B．was discussed | C．being discussed | D．be discussed |
As you know, there are a few formalities to be _____ before you enter a foreign country.
| A．gone through | B．gone against | C．gone over | D．gone up |
We are bound to solve the present severe problem, ________ we act intelligently and promptly.
| A．even though | B．unless | C．as long as | D．in case |
— David, how is your new job?
— ________ the salary, it’s not bad.
| A．Besides | B．Apart from | C．In addition to | D．As well as |
It is well known that too much ________ to the sun can promote the development of many skin cancers.
| A．contact | B．disclosure | C．exposure | D．exhibition |