几道英语语法题,

题目

几道英语语法题,
要讲出我为什么错了
i forgot__france.     a.he has gone to   b,he went   c.he hand gone to
我选了A
2.could you tell me if he___to shanghai?a.has gone b.had gone c.went  d.go
A,B
3.i want to know ___his homework yesterday.a.if he finished  b.whether he had finished 
A,B

答案