7. The police have already investigated some witnesses and the ________ is that it was just an accident, even among the families.

52. For convenience it is common to speak of plants as “herbs,” “shrubs,” and “trees,” but it is really no sharp distinctions among them.

38. I have no alternative ______ to arrive late.

7.在心理上协调一致，在教学过程中与教师之间要求平等合作，体现了新型师生关系的（ ）。

51. The need for more food discourages development of better technology which naturally keeps more people alive.

5.老师发现班里有个别同学学习困难，能在课后对他们进行个别辅导，根据福勒和布朗对教师成长阶段的划分，这属于（ ）。

33. I saw there was a man lying ______ the river.

3. James ________ so far behind in the race that he knew he had little chance of winning.

16. The young man asked me ________ with me.

11. —Why do you think the music is used?   —To ________ the plot, not simply to keep the toes tapping.

8.以下不属于课堂导入技能的原则的是（ ）。

41. The report ______ four parts.