4 What is the weather like in summer?
5 How heavy is your father?
6 Where do they stay?
7 How long is the ruler?
8 Whose pen is that?
9 How long does it take him to go to school by bike?
10 What is your phone number?
11 When did you receive a letter from John?
12 What does Minh usually do after getting up?
13 How often do you brush your teeth?
14 What time does Nga have an appointment this morning?
15 What time does she go to bed?