单项选择题A．315B．350C．375.

单项选择题A．RainyB．SunnyC．Cloudy

单项选择题A．He has to go to the bankB．He has missed the train.C．His train has been delayed.

单项选择题A．Have dinner with Mary. B．See a film with Mary.C．Do his homework.

单项选择题A．In ten minutes.B．In fifteen minutesC．In twenty minutes.

单项选择题A．He hasn’ found a suitable one.B．He hasn’ enough money.C．He prefers his old one.

单项选择题B

单项选择题A

单项选择题Which comes nextA, 1A, 111A, 311A,

单项选择题A man has 29 socks in his drawer, 9 identical blue, 8 identical grey and 12 identical black. The lights have fused and he is completely in the dark. How many socks must he take out to make certain that he has a pair of each colour