这主要看他在句子中表什么了
表原因 “因为.”
Being ill,he didn't go to school.
因为病了,他没上学.
表条件“如果,要是.）
Compared with him ,I still have a long way to go.
如果同他比,我还差多远呢
表时间 “当.的时候”
Walking along the street,I heard my name called.
当我在街上走的时候,我听到有人叫我
.
这主要看他在句子中表什么了
表原因 “因为.”
Being ill,he didn't go to school.
因为病了,他没上学.
表条件“如果,要是.）
Compared with him ,I still have a long way to go.
如果同他比,我还差多远呢
表时间 “当.的时候”
Walking along the street,I heard my name called.
当我在街上走的时候,我听到有人叫我
.