---Will there be more people in 100 years?
--- __________, I hope.
| A．No, there isn’t. | B．No, there will. | C．No, they won’t. | D．No, there won’t. |
Tom _______ his English book in the classroom last Friday.
| A．have forgotten | B．forgot | C．left | D．was leaving |
I really don’t know____________.
| A．how to do | B．what to do | C．what should I do | D．how I should do |
It’s _______ to work out the math problem. You needn’t go to ask the teacher.
| A．enough easy | B．easy enough | C．easily enough | D．enough easily |
The blouse ______ me 200 yuan.
| A．spent | B．cost | C．paid | D．took |