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．/; /

--I'd like to book a room for tonight．

--Sorry，sir，but we don't have any rooms ____ right now．

A．a(chǎn)ble B．comfortable

C．a(chǎn)vailable D．suitable

It's an either-or situation．You can watch TV or play games，but you can't do ____．

A．others B．either

C．a(chǎn)nother D．both

When the star fell ____ the darkness quickly at night，all the people felt it amazing．

A．down B．off

C．behind D．through

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

--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

There's no way of knowing why the man fails，____ he is always hard-working and wise．

A．when B．a(chǎn)lthough

C．if D．unless

--Millie hardly did the housework after she bought the robot，____?

-- ____．She could relax and have time for her hobbies．

A．did she; Yes B．didn't she; No

C．didn't she; Yes D．did she; No

--Could you tell me ____ ?

-- By speaking more．

A．what I could do to improve my English

B．how I can improve my English

C．how can I deal with my English

D．what's wrong with my English

I can still remember the sitting-room ____ my mother and I____ in the evening．

A．which; used to sit

B．that; used to sitting in

C．/： used to sit in

D．/： are used to sitting