The guests register and get the room cards with the front desk.
举一反三
- All guests must at the front desk.
- Guests can check out at the cashier of the front desk.( )
- All guests must _____ at the front desk. A: signing in B: sign in C: signed in
- All guests must<br/>() at the front desk. A: signing in B: sign in C: signed in
- All guests must___at the front desk. A: signing in. B: sign in C: signed