A hundred years ago there were _____________ inhabitants on the island; now there are only ______.
举一反三
- The old rules have to be ______ because they only applied to the circumstances that existed when they were made a hundred years ago.
- Years ago, many of the machines were operated ______ but now they are operated by computers. A: manually B: artificially C: automatically D: synthetically
- One hundred years ago , what percentage of the human population lived in cities?
- The river ______ very clean ten years ago, but now it is polluted.
- This old school is still having ________ of students ________ it had a hundred years ago when it was first founded.