Nowhere _______ find the necklace ______ by her husband in celebration of their tenth wedding anniversary.
| A．could she; giving | B．she could; giving |
| C．could she; given | D．she could; given |
The amount of money that he saved reached _________ 30000 dollars.
| A．as many as | B．as much as | C．as high as | D．as far as |
It is pretty well understood_______controls the flow of carbon dioxide in and out of the atmosphere today．
| A．that | B．when | C．what | D．which |
Mary got into acting purely _____________.
| A．accidental | B．accident | C．by accident | D．with accident |
It is no use thinking about your ________ youth.
| A．gone | B．lost | C．missed | D．losing |
---Must he come to sign this paper himself?
---Yes．He______ ．
| A．need | B．must | C．may | D．will |