_____ seen smoking here will be fined.
| A．Who | B．Whoever | C．Anyone | D．Who ever |
Edward couldn’t remember when he first met Mr. Crook, but he was sure it was ____ Sunday because everybody was at ____ church.
____ in the fields on a March afternoon, he could feel the warmth of spring.
| A．Walking | B．To walk | C．Walked | D．Having walked |
Only when I 
left my parents for America ____ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
– I am afraid I can’t return the camera to you before Friday.
– ____.
| A．Not at all | B．Be  careful |
C．Take your time | D．Don’t be afraid |
1. shadeA. behave B. shadowC. considerate D. battle
2. crowdA. slowB. windowC. allowD. row
3. actorA. worth B. therefore C. exportD. doctor
4. reduceA. chemical B. regret C. generationD. intend
5. nutrition A. struggleB. supportC. summaryD. confuse