No one knows ____________ in fifty years.
| A．what will our life be like |
| B．what is our life like |
| C．what our life will be like |
| D．what our life is like |
--Can Mr. King spare some time for the charity show?
--If he ___, he will try his best to make it.
| A．will be invited | B．is invited |
| C．invites | D．invited |
Sherlock Holmes asked the suspect what he ___ when the murder took place.
| A．was doing | B．has done | C．is doing | D．would do |
Helen encouraged me to speak English as much as possible because practice ___ perfect.
| A．becomes | B．became | C．will make | D．makes |
With the development of modern industry, there will be ___ living space for wild animals.
| A．fewer and fewer | B．less and less |
| C．more and more | D．bigger and bigger |
Audrey Hepburn, one of the greatest actresses, was ___ to take on challenges in her life.
| A．enough brave | B．brave enough |
| C．stupid enough | D．enough stupid |