Many people expect that credit cards will eventually______ paper money for almost every purchase．
A．trade B．replace C．exchange D．reduce
A person ________ email account is full won’t be able to send or receive any emails．
A．who B．whom C．whose D．whoever
Global warming causes the ocean ________, which in turn speeds ice melting．
A．to warm B．warming C．warmed D．warm
— I’m leaving now．
— ________ sure you turn off the switch．
A．To make B．Make
C．Made D．Making
We have a fine of the lake from our hotel window．
A．scene B．sight C．view D．scenery
It’s well-known that ________ World Exposition in 2010 is quite ________success．
A．不填; a B．The; a C．The; 不填 D．不填; the
