It's the sort of work that _________ a high level of concentration.
| A．calls for | B．makes up |
| C．lies in | D．falls for |
17． ______ others might have been satisfied, Dawson had higher ambitions.
| A．What | B．Why | C．Which | D．Where |
16．The dying man moved his lips as if ______ something, but it was too late for him to let out a single word.
A. to say B saying C. said D. having said
15． I got so angry at the news that I ______ her.
| A．should kill | B．might kill | C．must have killed | D．could have killed |
14．--- I ______ to be here on time.
--- But you ______ late again.
| A．meant; are | B．meant; had been | C．have meant; were | D．have meant; are |
13. They were surprised that a child ______ work out the problem while they themselves couldn’t.
| A．should | B．would | C．could | D．might |