_青岛成考网

Directions:For this part, you are supposed to write an essay in about 100-120 words based on the following situation. Remember to write it clearly.

61．新学期伊始，你（Li Yuan）有意加入学校环保社团（Environmental Club）。请给该社团写一封申请信，内容包括：

·个人情况介绍；

·申请加入的原因；

·你期望在社团中承担的工作；

·你对社团发展的建议。

Which of the following helps to determine our sleep cycles?

• A、Circadian rhythms.

• B、The environment.

• C、Blood pressur

• D、Heart rat

—I haven't seen Jerry for a while. Do you have any idea where he is?—He _____ be at home, but I'm not sure about that.

• A、might
• B、must
• C、will
• D、need