The poor mother when she heard the news that her only son had been killed by the enemies.
| A．broke out | B．broke down | C．broke up | D．broke off |
It is no doubt that once ____ this city, you’ll find that there is so much surprise waiting for you to discover.
| A．visit | B．visiting | C．visited | D．to visit |
_____ U2, the Irish rock band from Dublin perform a concert in Beijing, tell me in advance.
| A．If | B．Shall | C．Should | D．Would |
—Can’t you read the sign, sir? No parking here!
—_____.
| A．You’re welcome | B．Go ahead | C．Pardon me | D．Thanks, anyway |
They only say such unkind things about you out of ____ envy, because you are ____ success as a writer.
| A．the; a | B．the; / | C．/; a | D．/; / |
____ the police know the killer's identity, they are getting close to catching him.
| A．Even if | B．Although | C．Now that | D．As long as |