.Traveling by plane is the most comfortable ， but it is also the _________ .
| A．expensive | B．most expensive |
| C．cheap | D．cheapest |
--Could you come back home for dinner?
--_____.I'll be at a very important business meeting at that time.
| A．I think so | B．I'm afraid not |
| C．Yes, I hope so | D．I'm afraid so |
______ news it is! We will have a trip this weekend.
| A．What an exciting | B．How an exciting |
| C．What exciting | D．How exciting |
--These plans are all suitable.I haven't decided which one to choose.
--It's OK.You ________ plenty of time to make a decision.
| A．gave | B．give |
| C．will give | D．will be given |
--Thousands of people come to visit Qinghai Lake every year.
--That's true.It has become our _______.
| A．praise | B．prince | C．pride | D．price |
You will never guess ________.
| A．who am I waiting for | B．what has happened |
| C．how can she help me | D．where did I go |