Listening to music at home is one thing, going to hear it live is quite another.
| A．perform | B．performing |
| C．to perform | D．being performed |
______ hearing the news of the success, he opened his mouth wide, and then had a big smile on his face.
| A．To | B．Upon | C．In | D．With |
— Betty got sick for a while, but she’s much better now.
— ______
| A．It doesn’t matter. | B．Oh, it’s my pleasure. |
| C．Good heavens! | D．I’m glad to hear that. |
New technologies have made possible to turn out new products faster and at a lower cost.
| A．that | B．this | C．one | D．it |
The audiencewhen they watched his funny performance.
| A．burst into laughing | B．burst out laughter |
| C．burst into laughter | D．burst in laughing |
Every day we are using so many raw materials which _________that they _________.
| A．are running out; will be used up |
| B．are being run out; will run out |
| C．have run out of; will be using up |
| D．have run out; will run out of |