—Yes, I have never heard a ______ one.

A. more exciting B. more excited C. most exciting D. most excited

A. where B. when C. why D. how

【题目】We're looking for a headmaster, ________ who will devote himself entirely to the cause of education.
A.he
B.that
C.the one
D.one

【题目】—Have you been to the theme park?
—Of course. I ________ it several times when I was in university.
A.had visited
B.visited
C.have visited
D.was visiting

A. What B.That C.Who D. Which

A. given B. giving C. having given D. being given

A. gain B. gather C. balance D. digest

A. has B. has had C. had had D. was having

— Sorry. We don’t permit ____ in the lab.

A. smoking; smoking B. to smoke; to smoke C. smoking; to smoke D. to smoke; smoking