Your dad has just fallen asleep.Don't wake him up ______ it's really necessary.（ ）
| A． |
unless |
B． |
or |
C． |
and |
D． |
but |
Tina，is this your dictionary？
No． is at home．（ ）
A．MyB．MineC．Yours
Does your mother go to work by bike every day？
No．She sometimes takes bus．（ ）
A．aB．anC．/
Thanks a million for your help．
．（ ）
A．Never mindB．My pleasure
C．Good idea
The novel is great．It's well worth ．（ ）
A．readB．readsC．reading
My neighbor asked me I heard the big noise last night or not．（ ）
A．whetherB．ifC．what