Choose the correct option

Here are the correct options for the sentences provided:

69. **a. happened**
70. **b. have happened**
71. **c. was reading**
72. **b. has opened**
73. **b. has been waiting**
74. **d. looked**
75. **c. will have painted**
76. **a. has left**
77. **d. haven't seen**
78. **c. didn't see**
79. **a. has been living**
80. **c. will come**

Let me know if you need help with anything else!