Read and choose. (阅读短文，回答问题）
A: We have a new gym.
B: Really? Where is the gym?
A: It's on the second floor.
B: Our classroom is on the second floor, too. There are fifty desks in our classroom.
A: What colour is the door?
B: It's white.
A: What time is it now?
B: It's 10 :10.
A: It's time for music class. Let's go.
B: OK.
1. We have a ______ gym.
2. There are _______ desks in our classroom.
3. The door is _______.
4. What _______ is it now?
5. It's time for _______ class.