这道英语选择题怎么答?
问题描述：
这道英语选择题怎么答?
In my opinion,all our teacher()good to us students at present.He is very strict with us.
A.does does doesB.does do do
C.does does doD.did do does
并请解释一下原因
答
D
第一个did是our teacher后的动词,表示他做的事
第二个do是强调
第三个does是our teacher所做的事does good to对我们有好处