Why are you so happy— ______ the teacher’s help， I found the answer ______ the question.

The _________question is much moredifficult than this one.

Who is ____ man in a black hat —It’s Jim Brow . We often play ____ basketball in our free time.

We have worked for three hours. Now let’s stop a rest.

29 Realizing ______ I had been able to accomplish, my fears of failure grew rapidly