几道英语选择麻烦详细解释下原因

问题描述:

几道英语选择麻烦详细解释下原因
1. What upset the child was___to visit his mother in the hospital.
Ahis not to be allowed Bhim being not allowed Chis not being allowed Dhim to be not allowed
2.I mistake your office____John's.
Awith Bfor Con Dto
3.Would you please call me up later___they decide to go camping?
Athat Bfor Cwhether Dwhen

1.C
2.B
3.D
1.动名词作表语,his 是not being allowed 的逻辑主语,是动作执行者.
2.mistake ..for..把...误当做...
3.when...做时间状语,当...时候