Can you pls help me

Can you do pls help me

a. We were laughing at Sonia's joke when the teacher was entering the class.

b. While Karen was waiting for the bus, she saw her best friend.

c. They weren't allowing us to have our mobile phones while we were studying in the library.

d. Danny was standing on the chair when his mum appeared at the door.

e. The teacher was collecting the paper while I was answering the last question.

f. She didn't write her essay last night because her brothers made too much noise.

answer: tomorrow

explanation:

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.