题目内容
David helps his mother with her housework every Saturday for about ________.
[ ]
A.one and half hours
B.a half and an hour
C.an hour and half
D.one and a half hours
答案:D
提示:
提示:
|
“一个半小时”有两种表达方式:one and a half hours或an hour and a half。 |
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