Read the following sentences． "There are lots of excellent sights in Nanjing． Have you ever been to any of them？"The underlined part is to_________．（ ）
A．make a statementB．ask a question
C．give an instructionD．give an exclamation
You are driving too fast．Safety is the first．
Sorry．I'll drive ______．（ ）
A．more slowlyB．much slowly
C．most slowly
Hurry up，______ we'll miss the early bus．（ ）
A．butB．orC．and
What time do you usually get up on weekends？
I usually get up ___ 7：00 o'clock in the morning．（ ）
A．atB．inC．on
Excuse me．Is this ______ruler？
No．It's her ruler．______ is in the pencil box．（ ）
A．your，MyB．yours，MineC．your，Mine
It's hot today．Have some ______ please．
No，thanks．I'm not thirsty at all．（ ）
A．waterB．potatoesC．breadD．cakes