一、
12345
CABCA
二、
12345
DBCAD
一、1、every Saturday
2、before dinner
3、every evening/night
4、in the evening
5、after class
四、1、David has to do the dishes every evening.
2、He can go out and see friends at night.
3、Helen must help her mom make breakfast.
4、Can he watch TV on school nights?
5、He must clean his room on school days.
12345
CABCA
二、
12345
DBCAD
一、1、every Saturday
2、before dinner
3、every evening/night
4、in the evening
5、after class
四、1、David has to do the dishes every evening.
2、He can go out and see friends at night.
3、Helen must help her mom make breakfast.
4、Can he watch TV on school nights?
5、He must clean his room on school days.

