Students ought ______ the truth.
| A．told | B．tell | C．telling | D．to tell |
We’ve given her some advice, but I don’t know ________ she’ll accept it.
| A．what | B．where |
| C．whether | D．which |
I have to go home. My parents do not allow me to ___________ too late.
| A．stay up | B．stay out |
| C．stay away | D．stay behind |
— Do you think Mary has made a wrong _________?
— No, I don’t think so. It’s good for her to live alone.
| A．decision | B．experiment |
| C．difference | D．experience |
We are not sure if it ___________tomorrow. If it _________, we won’t go hiking.
| A．will rain; rains | B．will rain; will rain |
| C．rains; rains | D．rains; will rain |
They have been friends __________ they were at primary school.
| A．before | B．as soon as |
| C．since | D．when |