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 |
Do you find _______ difficult to be independent(独立的)?.
| A．this | B．that | C．it | D．one |
There will _______ free time in the future.
| A．have less | B．less | C．be less | D．be fewer |