1.Thank you for D us.A.helps B.to help C.help D.helping

题目

1.Thank you for D us.A.helps B.to help C.help D.helping
2.One of his friend B from the Unitd Kingdom. A.come B.comes C. coming D.to come
3. What B when it's sunny ? A.are you doing B.do you do C.does you do D.is he do
详细原因

答案

1是D for是介词,后面的动词加ing
2是B 单三
3是B when前后对称