By the 1920s, Howard Carter ____ an explorer.
| A．has become | B．had become |
| C．became | D．would become |
This book _____ ten units, ______ three mainly revision.
| A．contains; including | B．includes; containing |
| C．contains; containing | D．includes; including |
The book is _______ that one.
| A．as three times long as | B．three times the length of |
| C．three time as long as | D．three times as longer as |
Last winter, many places of southern China were struck by heavy snowstorms, __________more than 120 people were killed.
| A．from which | B．for which | C．at which | D．in which |
I’d appreciate __________ if you could lend me a hand with my homework.
| A．it | B．so | C．that | D．you |
I __________ laughter at the sight of the funny actor.
| A．burst out | B．burst into | C．broken into | D．began with |