攀登岩壁非常危险。
________ ________ ________ ________danger in rock climbing．
(2011江苏镇江)Mr.Brown always makes his class________and keeps his students________in class．
A．alive；interesting
B．lively；interesting
C．alive；interested
D．lively；interested
(2011四川宜宾)Computers________widely in our daily life．
A．use
B．used
C．were used
D．are used
(2013广西玉林)Many houses________in the earthquake of April 20，2013 in Ya’an．
A．is destroyed
B．are destroyed
C．was destroyed
D．were destroyed
(2013天津)—What languages________in that country？
—German and English．
A．are speaking
B．are spoken
C．speak
D．is spoken
Battery-operated slippers are used________seeing in the dark．
A．to
B．as
C．by
D．for
