The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾)．
| A．look for | B．to look for |
| C．to find out | D．find out |
______ your teacher for your pen.
| A．ask | B．Ask | C．Find | D．find |
Your father’s parents are your ______.
| A．uncles | B．aunts | C．grandparents | D．cousins |
Please ________ John at 678-5678.
| A．e-mail | B．call | C．spell | D．look |
— What color is the ruler?
— ________.
| A．It’s a red | B．It’s white | C．Is black | D． It’s a ruler |
This is ______ eraser and ______ eraser is Tom’s.
| A．the; a | B．the; an | C．a; the | D．an; the |