English teachers are supposed ______their students a test in class, even after class, ______better teaching results.
_____ you make a plan for study, you have to follow it.
The science fiction ______ last month and now it is popular with children.
No one can be sure in a million years.
____ students are practicing ___ English with each other at the English corner.
My father served in the army in _______ when he was in _____.