The number of people who________ English as a foreign language________ more than 750 million.
| A．learns；is | B．learn；are | C．learns；are | D．learn；is |
We can no longer ________ to consider water an almost free resource that we can use as much as we like.
| A．permit | B．afford | C．expect | D．offer |
________ you prefer, I'll give it to you. But we haven't any other models for you to choose from.
| A．Whatever | B．Whenever | C．Whichever | D．However |
For me traveling to Antarctica proved to be the beginning of a new life, ________ I had thought I would never see.
| A．what | B．that | C．one | D．it |
It was ________ surprise that my first teacher, already 90, was still living and in ________ good health.
| A．the; a | B．/; a | C．a; / | D．a; the |
He _________in the early morning so he packed everything he needed the night before.
| A．leaves | B．had left | C．was leaving | D．has left |