__________ you understand the rule, you will have no further difficulty.
| A．While | B．Once | C．Though | D．Unless |
___ part he played in the movie directed by the famous director moved the audiences to ___ tears.
| A．A; the | B．The; 不填 | C．A; 不填 | D．The; the |
By no means ______________ to her parents.
| A．this is the first time has she lied |
| B．this is the first time does she tell a lie |
| C．is this the first time she has lied |
| D．is this the first time she was lying |
__________ has helped to save the drowning girl is worth praising.
| A．Who | B．The one | C．Anyone | D．Whoever |
----I’m dead tired. I can’t walk any further, Jenny. ----_______, Tommy. You can do it.
| A．No problem | B．Come on |
| C．No hurry | D．That’s OK |
Many people agree that _________ knowledge of English is ________ must in international trade today.
| A．a; the | B．不填；不填 |
| C．a; 不填 | D．a; a |