32. She learnt both business and history, but she knows _____ of them well, though she can speak on _____ subjects in general.
of the speech, he took out his novel to read.
At the end of last class, the English teacher requested that the homework this morning.
A number of methods been used, but the number of animals still small in the forest.
If ,the experiment will be successful.
such heavy pollution already, It may now be too late to clean up the river.