Hi dears!
These are some questions that were written by a proficient English teacher (spent over 20 years teaching in the USA) about which there was disagreement on the use of language (grammar strictly speaking).
Please go through them, editing them with an explanation for any change.
(How/how far/ how often/ how long/ how about)
It's better if you study at the university.
B.
____________ does it take to
finish the degree?
A. It takes four years.
2- Should/must/have to/had to/ hast to/
Why did not you come to class yesterday?
I (go)
_________ to the hospital because I was very sick.
3- All students did not understand today's lecture.
They
____________ to the teacher about it.
4- Saleh works sixty hours a week. He looks very tired.
He (work) _
___________ less hours.