Volunteering _____ the world warmer． Even small things can make a big difference．（ ）
| A． |
make |
B． |
makes |
C． |
was making |
The high﹣speed train will _____ you about 2 hours from Rizhao to Jinan．（ ）
A．saveB．payC．useD．spend
The boss is so ______ that almost no one dares to play jokes on him．（ ）
A．friendlyB．carefulC．popularD．serious
Beautiful skirt!______ I try it on？
Sorry． It's sold already．（ ）
A．NeedB．MayC．WillD．Must
It's an easy job， but it needs great______．（ ）
A．tryB．careC．heartD．act
Which bottle is yours？
__________ one with __________ blue cover．（ ）
A．The； aB．The； theC．A； aD．A； the