—________ you interrupt now? Can't you see I'm on the phone?
—Sorry Sir, but it's urgent.
A．Can B．Should C．Would D．Must
As is reported, it will be more than 20 years ________ humans are able to walk on Mars.
A．before B．when C．since D．after
Be careful that a good name of a product doesn't ________ mean good quality of it.
A．alternatively B．approximately
C．obviously D．necessarily
The supermarket rules state that no goods ________ be taken out of the supermarket, ________ paid for by the shopper.
A．must; once B．should; when
C．can; if D．shall; unless
As usual, the 2013 Spring Festival Gala _____ on New Year's Eve, which attracted almost all the Chinese.
A．took up B．took in
C．took overD．took place
Our government ________ much importance to education now, which enables so many people to be well educated.
A．attaches B．pays C．links D．applies
