We must pay attention to _______ the teacher carefully in class.
| A．listen | B．listening to | C．hear | D．hearing |
In the UK, a lady usually doesn't like to be asked ___.
| A．whether has she got married | B．how old is she |
| C．where she comes from | D．how much she weighs |
--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 |