Complete the sentences using the words in parentheses.(В скобках)
1. You are forbidden to enter this area without permission.(not)
2. We are obliged to wear gloves in the laboratory.(have)
3. You are not allowed to take pictures here.(not)
4. It was not necessary for her to make an appointment(have)

1. You cannot enter this area without permission. (not) 2. We have to wear gloves in the laboratory. (have) 3. You cannot take pictures here. (not) 4. She didn't have to make an appointment. (have)