题目内容
While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.
| A.now and then | B.over and over | C.up and down | D.here and there |
A
词义辨析。A时而不时;B一再;C上上下下;D到处。结合句意可知A正确。句意:在打字的时候,Helen有时而不时停下来的习惯,让长长的头发顺下来。
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