单词填空

1. Are there many ______( 印度人) in your city?

2. My teacher told me that to be successful requires _____(某种) efforts.

3. Which ______(时期) of history would you most like to live in?

4. ______(不管多么) difficult it was he'd try to help us.

5. Do you know the ______(发言者) at the meeting?

6. I can't ______(表达) my opinion in English because I am not good at it.

因以下原因造成工期延误，经工程师确认，可以顺延工期的是（ ）。

A．混凝土浇筑时连续一周的低温阴雨

B．因设计变更使工程量缩减

C．两周内非承包人原因停水、停电、停气造成停工累计超过8小时

D．不可抗力事件