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
So difficult it to work out the problem that I decided to ask Tom for advice．
A．I did find B．I have found C．did I find D．have I found
The rescue workers were working around the clock, ________ supplies to Yushu Qinghai Province after the earthquake．
A．to send B．sending C．having sent D．to have sent
After the earthquake, the first thing the local government did was to provide for the homeless families．
A．accommodation B．occupation C．equipment D．furniture．
