He realized his mistakes and took action to reduce the loss _______ it was too late.
| A．until | B．when | C．before | D．as |
—Amy, I haven’t finished my homework, so I can’t go swimming with you.
—_______.
| A．Have a good time | B．Don’t worry |
| C．That’s a pity | D．Study hard |
_______ amazing movie Rio2 is! Many people like to watch it.
| A．What | B．How an | C．What an | D．How |
—Are you interested in learning math?
—Yes, but I’m afraid to _______ too much time on math.
| A．take | B．spend | C．pay | D．cost |
If you have trouble pronouncing the word, you can repeat it over and over again _______ you are comfortable with it.
| A．unless | B．if |
| C．until | D．while |
—I will take an important test tomorrow.—Oh, really? _______!
| A．Good luck | B．Have a good time |
| C．Well done | D．Good idea |