—Do you think playing cards is beneficial to our study?—No,if ________,it can help us kill time when we have nothing to do.
—Would you mind my telling him the news? —_________.
_____ 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.