园林工程回访的方式主要包括（）等。
A、季节性回访
B、技术性回访
C、保修期满前的回访
D、绿化工程的日常管理养护
参考答案：A, B, C, D
根据句意及首字母提示填空。
1. When you are going across the road, you shouldn't r____.
2. You may call the police when you are in t____.
3. In China when you see the yellow lights, please s____ down.
4. He always wants to get more money without working. He must be c____.
5. She a____ answering my question because she doesn't know how to answer it.
Mr Smith is a strict but good teacher, _______cares about both our study and life.
A．one who
B．whoever
C．the one
D．the person
