The increasing number of the students makes the limited computers not_____to each student. [ ]

Poor boy! His looks and hands suggested he was very afraid.

Employees in a chemical factory should be given _____ training in safety.

I think your suggestions are of great ______ to me and they are well worth ______.

I want to borrow the book, but I don’t know how long I can _______ it.—For two weeks.