Robert is said _______abroad, but I don’t know country be studied in .
A. to have studied B. to study C. to be study D to have been studying
相关试题
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
| A．than | B．such | C．so | D．as |
As there is less and less coal and oil, scientists are exploring new ways of making use of ______ energy, such as sunlight, wind and water for power and fuel.
| A．primary | B．alternative | C．instant | D．unique |
Mary kept weighing herself to see how much _______ she was getting.
| A．heavier | B．heavy | C．the heavier | D．the heaviest |
At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.
| A．effective | B．individual | C．inevitable | D．unfavorable |
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