--Shanghai Pudong Airport please! I must get there by 7.
--____,but I'll try my best.
A.No problem B.All right
C.I can't promise D.I can't do that
The research group ____ 15 members has made great achievements in recent years.
A.is made up of B.makes up
C.made up of D.making up of
When the star fell ____ the darkness quickly at night,all the people felt it amazing.
A.down B.off
C.behind D.through
It's an either-or situation.You can watch TV or play games,but you can't do ____.
A.others B.either
C.another D.both
--I'd like to book a room for tonight.
--Sorry,sir,but we don't have any rooms ____ right now.
A.able B.comfortable
C.available D.suitable
The astronauts were so interested in____ beauty of nature that they took lots of pictures in____ space.
A.the; / B.the;the
C./;the D./; /