After a short rest,he () the work hard again.A.goes on doing B.went on doing C.went on to do

题目

After a short rest,he () the work hard again.A.goes on doing B.went on doing C.went on to do
D.went doing
What's the use of this kind of fuel?
It can make the train () fast.
A.togo B.going C.went D.go

答案

B
这题考的是go on to do和go on doing的区别
go on to do 接着做另外的事情,例如：
Go on to do the other exercise after you finish this one.
做完这个练习题后,接着做另一个练习题.
go on doing接着做同一件事情,例如：
After a short break,I go on doing my homework.
在短暂的休息后,我继续做作业.