What's matter，Nancy？ I have sore throat．（　　）

A．the；theB．the；aC．/； a

How do you improve your ？

By listening to a tape and repeating out loud．（　　）

A．pronunciationB．environment

C．invention

Look! This restaurant is always crowded．

The food here ______be very delicious． Let's go and have a taste．（　　）

A．needB．can'tC．must

China is almost as as the US，and it is the country in Asia．（　　）

A．big；biggerB．big；biggest

C．bigger；biggest

Have you ever to Caozhou Peony Garden？ Yes，I there last year．（　　）

A．been；wentB．gone；wentC．been； gone