How noisy it is!Could you please ____the CD player a little？（ ）
A．turn offB．turn downC．turn onD．turn up
This book_____be Lucy's． Look! Her name is on it．（ ）
A．canB．mayC．mustD．might
More and more people in Qingdao go to work_____subway now．（ ）
A．withB．onC．inD．by
It's my daughter's birthday today． She's_____years old．（ ）
A．eighteenB．eighteenth
C．the eighteenD．the eighteenth
Jack is happy． Ms． Wang， an excellent teacher， teaches_____math this term．（ ）
A．heB．himC．himselfD．his
We should have_____breakfast every day to keep healthy．（ ）
A．aB．anC．/D．the