87.A number of people _____at the street corner.

73.- Congratulations! You won the first prize in today's speech contest.
-

72.- Could you help me with my physics, please?
-

71.- Thank you very much for giving me so much help.
- _____________________.

70.The young lady coming over to us _____ our English teacher; the way she walks tells us that!

69.I didn’t expect you to turn _____ at the meeting yesterday.

68.I won’t make the _______ mistake next time.

67.Neither Jack nor I ________ able to persuade his father to attend the wedding.

66.I took the medicine, but it didn't _______.

65.- Is it possible for you to work late tonight?
-

64.- Good morning, may I speak to Mark, please?
-