77. 假如你小心点，你就不会犯错。

If you ___________________, you wouldn’t _____________________.

76. 你过去害怕独自一人呆着吗？

Did you __________________ afraid of ________________?

4．In English class, he　had a test.　 As he didn't know the lessons in the 　 69 , Tom __70____his English test.

3．When Tom 　66　 　school, it was eight. The teacher was already beginning her lesson. As soon as Tom came into the classroom, she got 　67　 　and said,“What time is it now, Tom?”Tom felt sorry and could say 　68　 .

2．The next morning, it was a 　64　 　to eight. It was too late for Tom to get to school 　65　 　time. But he was still in bed.

1．It was late last Monday, but Tom was still 　61 TV in his room. There was a wonderful football match on TV. 　62 excited(激动的)he was! That night he 　63　 　go to bed until twelve o'clock.