I don’t understand ______ such a silly question in class yesterday.
| A．why did John ask | B．why John asked |
| C．why is John asking | D．why John asks |
In our life, we can work hard on one task _______, and then another. In this way, all your dreams can be realized.
| A．at a time | B．on time | C．at the time | D．all the time |
We have discussed the project for two hours. And after a short break, the discussion________.
| A．will carry on | B．will be carried on | C．has carried on | D．were carried on |
Now, the Internet has made ______ much faster and easier to travel. For example, you can book tickets online.
| A．us | B．that | C．it | D．this |
--------I’m going to take part in the singing competition tomorrow
-------- _________ !
| A．Cheers | B．See you | C．Good luck | D．Congratulations |
A report says that the world’s natural gas deposits______ early in the future.
| A．will be run out | B．will use up |
| C．will run out | D．will be cleaned up |