Hiking is _____ great fun. You will get close to ____ nature and take exercise at the same time.

Doctor Wang atseven o’clock for the conference, but she didn’t turn up.

Three minutes earlier ____ we could have caught theearly train to Philadelphia.

The local economy is now_____ a mess and the government is_____ a loss for what to do now.[ ]

You look upset. What’s the matter ?— I had my proposal ______ again. [ ]