It is known to all that a proper amount of exercise ________ to good health.
| A．benefits | B．contributes | C．values | D．improves |
Although the false banknotes fooled many people，they did not____close examination．
| A．put up with | B．fit in with | C．stand up to | D．1ook up to |
These natural parks aye very important for preserving animals，which would_______-run the
risk of extinction．
| A．otherwise | B．therefore | C．besides | D．however |
— I’m sorry．I’ve left my wallet home．So I don’t have enough cash for the meal．
— Take it easy．_____
| A．It’s a piece of cake． | B．It’s my pleasure to pay you． |
| C．It’s my treat． | D．It’s at your expense． |
Putting the worries out of her mind，Mary turned her efforts__________the evening meal．
| A．toward | B．beyond | C．off | D．inside |
This is an exciting area of study，_______new applications are being discovered almost daily．
| A．one by which | B．the one where | C．one in which | D．the one by which |