Contracts must be renewed one week （) their expirations.A．onB．againstC．the moment ofD．be

All the following sentences have a passive meaning EXCEPTA．We must be prepared for the wor

We live in a narrowed world______we must be alert, awake to realism.A．thatB．whichC．whereD．

In the last paragraph the author mainly wants to express .A. one must be brave to be h

A postman’s job must be a boring one.

To be successful in negotiations one must______.A.meet his boss at the appropriate timeB.

Contracts must be renewed one week__________their expiration. A.on B.against C.the moment