（1）When did Sandy and Daniel do the survey？
A.At 3：00 p.m.jye.ai Wednesday.
B.At 4：00 p.m.jye.ai Wednesday.
C.At 3：00 p.m.jye.ai Thursday.
（2）How many students were asked about their daily life？
A.50.
B.60.
C.70.
（3）How long do twenty of the students take showers？
A.For less than5 minutes.
B.For less than 10 minutes.
C.For less than 15 minutes.
（4）How many students turn off the tap when brushing their teeth？
A.25.
B.35.
C.45.
（5）What do most students do？
A.Recycle empty bottles.
B.Turn off the lights when they leave the room.
C.Take their own bags when they go shopping.