20. _____ about the economic crisis that he decided to look for more information about it.
| A．So curiously he was | B．So curious was he |
| C．Such curious he was | D．Such was he curious |
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. prepared B. prepares
C. had prepared D. 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 |