In communication, a smile is usually _____ strong sign of a friendly and ____ open attitude.
| A．the; / | B．a ; an | C．a ; / | D．the; an |
The traveler lost his way in the woods, and made things worse was that it was getting dark.
| A．that | B．what | C．which | D．as |
—Go and ask her come .
—OK.
| A．what time would she like to | B．at what time she’d like to |
| C．when would she like to | D．when she likes to |
—I rang you at about nine, but there was no reply.
—Oh, that was probably I was seeing the doctor.
| A．why | B．when | C．what | D．that |
She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
| A．what it is | B．it is what | C．how it is | D．it is how |
_____ I know the money is safe, I shall not worry about it.
| A．Even though | B．Unless | C．As long as | D．While |