Cycling is a good exercise.（）, it doesn't pollute the air.

单项选择题Speed limits should lead（） fewer deaths on the roads.

A.to
B.off
C.on
D.in

单项选择题The hospital is carrying（）tests to find out what’s wrong with her.

A.over
B.out
C.off
D.away

单项选择题Hello, I’m Harry Potter. Hello, my name is Charles Green, but（）.

A.call    my    Charles.
B.call   meat   Charles.
C.call   me    Charles.
D.call   Charles    me.

单项选择题Thank you for your help. （）

A.My  pleasure./You’re  welcome./Noproblem
B.Never  mind
C.Quite  right.
D.Don’t    thank    me.

单项选择题How are you，Bob？—greetings How do you do？Hello!Hi!What’s up？（）Ted

A.How   are   you？
B.I’m   fine.Thank  you.
C.How  do  you   do？
D.Nice   to   mee   tyou.