问题
Questions and exercises are given by the computer, which decides ______ to move the students ahead, review an easier level, ____ give more work on the same level
A:either, or
B:both, and
C:whether, or
D:not only, but also
B:both, and
C:whether, or
D:not only, but also
正确答案是：
同类题型
The old man lives in a wooden house _____ , but he doesn’t feel_____ .
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Hi, Kate. Is this ____English book-No. Look! Here is Lucy’s name. It’s____.
Can you _________ my dog when I am on holiday, Tom —- Sure.
－I haven’tseen the film Pirates of the Caribbean. －___________.