On the day I was to take the driving test, so ______ was I that I could not understand what I was
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 _____.
Only when finished his own work, ask him to help you.