The boy the first prize, but he was so careless as to make a foolish mistake.
| A．must have gained | B．need have gained |
| C．could have gained | D．shall have gained |
Shedown beside me and soon got into sleep.
| A．lied | B．laid | C．lay | D．lain |
Itbe difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.
| A．mustn’t | B．ought to | C．needn’t | D．can’t |
He is going to build a team that has a lot of potential and he thinks that isexcites him.
| A．that | B．which | C．what | D．as |
They waited at the bus stop and about five minutes later the bus they wantedalong.
| A．coming | B．came | C．to come | D．had come |
Books are a worthy invention of human history since they make it possible for us to make a__of human’s thoughts.
| A．plan | B．sign | C．point | D．record |