阅读对话，判断正误，用“√”“×”表示。A: Come here, Helen. What's that on the desk?
B: It's a clock,
A: What's the time?
B: It's seven o'clock.
A: It's time to go to school.
B: OK. Let's go by bike.
( )1. It's a clock on the desk.
( )2. It's six o'clock.
( )3. It's time to go to school.
( )4. Let's go to school by bike.1. √2. ×3. √4. √