When I go to King Saud University Library, I usually ……………………&he…

All of your travel plans have been made. When you arrive, someone ............. for you at the airport.

In which sentence is all PUNCTUATION correct?

The pilot landed the plane safely despite the fault with................... controls.

Would someone please tell him the correct answer to the question that he. .......... ?

It's very important to have a teacher… .............. knows his subject.