21. Shooting movie at high school is experience that I will never forget as long as I live.
A. the, / B. a, / C. /; an D. a, an
22. It was not until the boat was out of sight ______ their hands.
A. did they stop waving B. that they stopped waving
C. they didn’t stop waving D. had they stopped waving
23. Chongqing doesn’t ____ me. It is so hot that I can’t ____ it indeed.
A. agree on, come up with B. agree with, put up with
C. agree to, end up with D. agree with, take up
