I go swimming every day．
Wow! That's a good ________．It keeps you healthy．（ ）
A．marchB．taskC．habitD．dream
They went climbing the morning of May I and came back the afternoon．（ ）
A．on；onB．in；inC．on；inD．in；on
Tom likes playing football and he is member of the club．（ ）
A．the；aB．the；不填C．a；theD．不填；a
Reading is a good way to pass the time on the plane．
_______．I never go travelling without a book．（ ）
A．You are jokingB．That's true
C．I don't think soD．It sounds like fun
（on the mobile phone ）
Where are you？I can't see you here at the theatre．
_______．I'm just one block away．（ ）
A．Good ideaB．My pleasure
C．I'm comingD．Nice talking to you
In the words unhappy and unusual，the "un" means _________．（ ）
A．veryB．mostC．notD．less