-How many letters you to your mother？
-109 in all， since 2016．（ ）
| A． |
has， written |
B． |
have， written |
| C． |
did， write |
D． |
are， writing |
You another day to make your own decision．（ ）
A．gaveB．are giving
C．will be given
Our teacher was very happy because failed the exam．（ ）
A．somebodyB．anybodyC．nobody
﹣ Could you the computer for me， dear？ I want to check my e﹣mails．
﹣ Certainly．（ ）
A．turn onB．turn downC．turn off
﹣ I'm going on a vacation this weekend．
﹣ ．（ ）
A．The same to youB．Have a good time
C．Hurry up
Be careful，________ you'll make fewer mistakes in the exam．（ ）
A．orB．butC．and