I have to delay（）the letter.

单项选择题It is sleeping late in the evening that（）being late for work.

A. devotes to
B. sticks to
C. refers to
D. leads to

单项选择题Because of the heavy traffic, it was already time for lunch break （） she got to her offiee.

A. since
B. that
C. when
D. until

单项选择题—When shall we restart our business —Not until we （） our plan.

A. will finish
B. are finishing
C. are to finish
D. have finished

单项选择题You've failed to do what you （）to and I'm afraid the teacher will blame you.

A. will expect
B. will be expected
C. expected
D. were expected

单项选择题The lawyer listened with full attention,（）to miss any point.

A. not trying
B. trying not
C. to try not
D. not to try

单项选择题—I'm sorry. That wasn' t of much help. —Oh, （）.As a matter of fact, it was most helpful.

A.sure it was
B.it doesn't matter
C.or course not
D.thanks anyway