—You can’t imagine ____ fantastic fun web chatting is.
—Really? But it may cause a lot of trouble sometimes.
| A．what | B．how | C．why | D．so |
. You should remember the cause and avoid it the next time you _______the same situation.
| A．come out | B．come about | C．come up | D．come across |
So difficult __________ it to adapt to the academic requirements of a Western university that I determined to take a preparation course.
| A．I have felt | B．have I felt | C．did I feel | D．I did feel |
.____ 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 |
__________in the newspaper last week, the news of his wedding spread quickly in the city.
| A．Having been announced | B．To announce |
| C．Being announced | D．To be announced |
. We must be______that this year might be the worst in recent times for our economic development.
| A．sensitive | B．aware | C．serious | D．bound |