Question

Tom has difficulty ________Chinese,so he often asks me _____

Answer 1

1.have difficulty (in) doing sth ask for help ,所以选择D ,B 错误

2.全班分为两部分,TOM 和其他同学,选择D

3.whether to do sth

4.不是句型,是虚拟语气,自己可能是小鸟,更不可能飞,所以使用了虚拟语气.

如,i wish i were ten years younger ,不可能发生的事情,我是不可能比现在年轻十岁的.