I just wonder ________ that makes him so excited．
A．why it does B．what he does C．how it is D．what it is
A new college is being built in ________ I can remember was an old factory 20 years ago．
A．which B．where C．that D．what
A clean environment can help the city bid for the Olympics, which ________ will promote its economic development．
A．in nature B．in return C．in turn D．in fact
Letterboxes are much more ________ in the UK than in the US, where most people have a mailbox instead．
A．common B．normal C．ordinary D．usual
I’d appreciate _________ if you would like to teach me how to use the computer．
A．that B．it C．this D．you
—What's the name?
— Khulaifi．_______ I spell that for you?
A．Shall B．Would C．Can D．Might
