But if a treatment ________ delayed the disease by seven years were to be available, the number of sufferers would drop by 40% by the middle of the century.
| A．where | B．when |
| C．why | D．that |
Don’t spoil (惯坏) the child. Can’t you make your little son ______ himself?
| A．behave | B．believe | C．perform | D．conduct |
It is well known that Madam Curie won two Nobel Prizes for her scientific ______.
| A．adventures | B．inspiration | C．achievements | D．discoveries |
—Would you like to watch the basketball match with me this evening?
—______. I like basketball very much.
| A．I’d love to | B．Not really |
| C．I wouldn’t go | D．Thank you all the same |
Missing the train means _____ for another two hours.
| A．to wait | B．waiting | C．having waited | D．waits |
Most students find _____ hard to learn maths well.
| A．that | B．this | C．it | D．very |