Yes, completely agreed. I ask you such a question since I have not studied English basic structures so far although I joined a well-known school in S. Arabia for many years. Unfortunately, I have been subjected to a lot of English language exams and lacking the basics; therefore, the quality of teaching is below the international standard. I am still at the bottom of the ladder thus I have been studying for many years where people in developed countries can achieve that in a short time. Time and energy can be saved besides, making a difference.
I was asked the below question:
"You can learn the basic structures of a language quite quickly, but only if you … make an effort.
3.are willing to
I chose \3. Infinitive in the second one gave me a clue/hint that \2 is wrong. To be honest with you, I learned this rule from online not from local schools.