As is often pointed out, knowledge is a two-edged weapon which can be used ______ for good or evil.
| A．similarly | B．widely | C．equally | D．properly |
The long lasting cold current has brought ________ winter in my memory to the east coast of the United States．
| A．the longer | B．the longest |
| C．a longer | D．a long |
______ opinions on the schedule, we finally reached on agreement.
| A．Having exchanged | B．Exchanging |
| C．Exchanged | D．To exchange |
—It is said that John’s paper got an A.
—He deserves it．He _________ a lot before he handed it in.
A．preparedB．prepares
C．had preparedD．has prepared
The paper ox my grandmother _________ for me is my most valued birthday gift．
| A．cut | B．will cut |
| C．had cut | D．cuts |
You ________ reach him on his mobile now his mobile is still under repair.
| A．shouldn’t | B．wouldn’t |
| C．can’t | D．mustn’t |