1.Mr Brown ()England,he ()London for about 3 weeks.
问题描述：
1.Mr Brown ()England,he ()London for about 3 weeks.
A.has been to has been in
B has gone to has been in
2.()how hard it is,we will keep trying till we()it
A No matter succeed B no matter make
3.Some foreign teachers wll visit our school ()a ()time.
A in week丿s B in weeks丿
答
1.A has been to：曾经去过某地；has been in ：曾在某地呆过一段时间
2.B make it 做到；成功
3,A in a week's time一周之后
祝你开心如意!我全做对了，谢谢祝贺你！