Question

转化为现在完成进行时态 1、I taught here last year 2、he baganto make model planes when he was six

Answer 1

I has been teaching here since last year
he has been making model planes since he was six(begin 是瞬间动词 不能用现在完成进行时）

Answer 2

I have been teaching here for 1 year.
he has been making model planes since he was six.

Answer 3

have been teaching since last year
He has been making model planes since he was six.

Answer 4

修改了两遍。。。我觉得这个题目有问题。
现在完成时是要一个现在的界限的吧，比如在今天之前，昨天之前已经完成的是。这个界限楼主没有给出啊~

Answer 5

I have been teaching here since last year
He has been making model planes since he was six