The children talked so loudly at dinner table that I had to struggle ______.
| A．to be heard |
| B．to have heard |
| C．hearing |
| D．being heard |
— I dreamed of some animals running on the moon.
— It ____ be. There is no air or water on the moon, you know.
| A．can’t | B．may not | C．shouldn’t | D．mustn’t |
An American plane is reported ____ in the Atlantic Ocean with 228 people aboard, the airline’s worst disaster in its 75-year history.
| A．to have crashed | B．to have been crashed |
| C．having crashed | D．having been crashed |
Time should be made good use of ____ our lessons well.
| A．to learn | B．learning | C．learn | D．learnt |
— ____ you read the newspaper?
— Yes. I ____ it on the bus while I was on my way to work.
| A．Have; read | B．Did; read | C．Have; have read | D．Did; have read |
We ____ on this project for four hours. Let’s have a rest.
| A．are working | B．have been working | C．worked | D．had worked |