（2013·新课标Ⅱ卷)Since nobody gave him any help, he have done the research on his own.
| A．can | B．must | C．would | D．Need |
They found the remains of buildings _______ under the sand, together with a lot of treasures.
| A．being buried | B．buried | C．to be buried | D．burying |
It is not Tom but you who _______ to blame for the accident.
| A． is | B．was | C． are | D．is going to |
The injures from Yushu earthquake are in different hospitals. Right now they ______ carefully.
| A．are treating | B．are being treated | C．have treated | D．have been treated |
Our country is _______ to yours in that they both have several time zones.
| A．same | B．similar | C．alike | D．familiar |
_______ interests me most is the natural beauty of nature.
| A．That | B．Which | C．it | D．What |