When the students …… hard, they pass their exams.

In which of the following sentences is all PUNCTUATION CORRECT?

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

Anna's family is very worried about her ............... she hasn't called them since she left to study abroad.

In which sentence is all PUNCTUATION correct?

He did not have… ........... money in his wallet, so he stopped by the cash machine.