I can’t thank you too much for your kindness because without your help I        have won the first prize in the speech contest．

— Although she sometimes loses her temper, her students like her no less. — That’s it. _____ , she is really a good teacher.

The teacher will give us an interesting talk _______ you said. 

The teachers are supposed to teach us about “safe sex” but most of them are too________.

When I try to find ______that prevent so many people from taking part in the program, it seems to me that there are two main causes.