I.看例子,用when组句子,人称主语可用we或I1.(when)/meet our friends/hug them2.(when)/get on then bus/let old people sit down first3.(when)/answer the phone/say"Hello"4.(when)walk in the busy street/not run or play

1. I warmly hugged them.
2. I should let old people sit down first.
3. I usually ay "Hello" first.
4. I should not run or play.

1. When we met our friends , we warmly hugged them.
2. When we get on the bus, we should let old people sit down first.
3. When we answer the phone, we usually ay "Hello" first.
4. When we are walking in the busy street, we should not run or play.

1.Wwhen we meet our friends,we hug them.
2.When we get on the bus,we let old people sit down first.
3.When we answer the phone,we say"Hello".
4.When we walk in the busy street,don't run or play.