All of us are interested _____ music. We often listen to it on our way.[ ]
Can we find before an earthquake?—-Yes. Some animals will run wildly and some plants will come out in the wrong season.
___ _the population of China?–_______over 1,300,000,000.
What are these? –_______ books．
Judy,you look so tired.—Yes, I didn’t go to bed ____ 12 o’clock last night. [ ]