Among the 15-year-old children, some studying in university while others are still learning to read and write.
--Did Peter repair his bike? --He _______, because he could’t do that himself.
The policy(政策) that the Chinese government stuck to _____correct.
The naughty boy _________ the radio but he can’t fix it up.
I never put anything _____ others into my bag.
Would you please make up a topic worth______ at tomorrow’s meeting?