1. It is difficult for his parents to trust him because he is always ______.

2. The Class Captain collected a ______ of donation cards from the general office.

3. "Tune the guitar first, then strum it. Do not ______," said the guitar instructor.

4. The tiger is waiting for the perfect time to ______ toward the deer and pounce on its prey.

5. Brian has been ______ in his weekly spelling tests. He has always gotten full marks for every test.

6. After the parents complained about bullying in the school bus, the school principal ______ the matter.