10. — How old are you, madam?
— If you _______ know, I’m twice my son’s age.
| A．can | B．must | C．may | D．Should |
________ that they lost the game, tears came down Kate's face.
| A．On hearing the news |
| B．When heard the news |
| C．The moment she heard the news |
| D．While hearing the news |
________ the Internet is bridging the distance between people, it may also be
breaking some families or will cause other family problems.
| A．When | B．If | C．While | D．Since |
________ your blog, I would have written back two days ago.
| A．If I read | B．Should I read |
| C．Had I read | D．If I could have read |
________ in his book, he didn't notice me ________ I entered the room.
| A．Devoted; when | B．Absorbed; while |
| C．Absorbed; when | D．Devoted; while |
How can you expect him to make any progress ________ you never give him a chance to have a try?
| A．when | B．unless |
| C．even though | D．until |