To me, cycling at ___ altitude of more than 4,000 meters was _____ unforgettable experience.
| A．the; an | B．an; an | C．/; a | D．an; / |
______ they grow they make sure that what is left in the ground after harvesting______ a natural fertilizer for the next year’s crop.
| A．Whatever; become | B．Whichever; become | C．Whatever; becomes | D．Whichever; becomes |
I was disappointed with the film. I had expected _______ to be much better.
| A．that | B．this | C．one | D．it |
Only when _________ in the afternoon ________ able to leave.
| A．the match was over; they were | B．was the match over; were they |
| C．was the match over; they were | D．the match was over; were they |
He argued ______ smoking, and insisted that it was ______argument that smoking was harmful to health.
| A．for; beyond | B．against; over | C．for; over | D．against; beyond |
The children were warned of not being too __________ about things they are not supposed to know.
| A．strange | B．amusing | C．curious | D．satisfied |