Question

Pls help me this correcting errors exercise

1. What time the library closes?
2. Do you please help me find some information?
3. Where to find this call number?*
4. How much costs the copy machine?​

Answer 1

1) What time does the library close?
2) Can you please help me find some information?
3) Where do I find this call number?
4) How much does the copy machine cost?