It was 80 years before Christopher Columbus crossed the Atlantic______Zheng sailed to East Africa
| A．when | B．that | C．after | D．since |
All her time _______ experiments, she has no time for films.
| A．devoted to do | B．devoted to doing | C．devoting to doing | D．is devoted to doing |
Some students are now busy preparing for the “Independent Recruitment(自主招生)” contest, in hopes of getting a “Pass” card at their first _______.
| A．purpose | B．performance | C．desire | D．attempt |
While income worry is _______ rather common problem of the aged, loneliness is another problem that _______ aged parents may face.
| A．a; the | B．the; / | C．a; / | D．the; the |
－So you gave Mary your dictionary?
－______.She said she'd return it to me when she could afford her own.
| A．Not exactly. | B．My pleasure. | C．No doubt. | D．Good idea. |
The government has taken measures to______the high prices of daily goods to keep the market stable．
| A．put down | B．tear down | C．hand down | D．bring down |