题目内容
Robert is interested in _________ astronomy and he wishes he could make a trip into _________ space one day.
- A.the; the
- B.an; the
- C.an;不填
- D.不填;不填
D
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—Robert is indeed a wise man.
—Oh, yes. How I have regretted ____ __his advice?
|
A.to take |
B.taking |
C.not to take |
D.not taking |