If the doctor is ______ this afternoon, I will take my little daughter to him for a thorough checkup.

Early experiences taught me not to be overly _      about shopping by mobile phone because there is a high risk of being cheated．

Recently our government policymakers are very _______about the rapidly rising food costs. 

—Are train services now back to ______after last week's snowstorm?—Yes，they are.

We regret to inform you that there are no tickets      for Friday’s performance.