1、We have lunch at noon.We have lunch（ ）（ ）（ ）（ ）（ ）（ ）2、He is going to school at once.He is going to school（ ）（ ）3、He goes home for supper at five thiry.He goes home（ ）（ ）（ ）at（ ）（ ）five.
问题描述：
1、We have lunch at noon.
We have lunch（ ）（ ）（ ）（ ）（ ）（ ）
2、He is going to school at once.
He is going to school（ ）（ ）
3、He goes home for supper at five thiry.
He goes home（ ）（ ）（ ）at（ ）（ ）five.
答
1、We have lunch at noon.
We have lunch（ in ）（the）（ middle ）（ of ）（ the）（day ）
2、He is going to school at once.
He is going to school（ right ）（ now ）
3、He goes home for supper at five thiry.
He goes home（ to ）（have ）（supper ）at（thirty ）（ past）five.