_____the teachers in their school is about 200 and ________ them are women teachers.( )
A.A number of,a number of
B.A number of,the number of
C.The number of,a number of
D.The number of,the number of
It is very important for us_____ English well.
Class is over. It’s time ______ you ______ a rest.
Ty to sing more English songs , and you will find it interesting _______ a foreign language.
We all need partners _______.
The river is too wide for the swimmers _______________.