劳动合同期限（）的，试用期不得超过两个月
A.三个月以上不满一年
B.一年以上不满三年
C.三年以上固定期限
D.无固定期限
参考答案：B
— My parents have been to Hongkong.
— Really? When ______ there? [ ]
A. have they gone
B. have they been
C. did they go
D. will they go
假定
