The security judge was very _________ when she explained that the driving licence was necessary for her work .
| A．reasonable | B．natural | C．ridiculous | D．available |
20. When Jane began to take swimming lessons, her main__________was the fear of water.
| A．evidence | B．crisis | C．obstacle | D．Danger |
19. The language used in advertisements differs from____________used in ordinary readings.
| A．which | B．what | C．that | D．It |
18._________is often the case, he didn’t study hard and failed to pass the test.
| A．What | B．Which | C．It | D．As |
17.They had a pleasant chat____________a cup of coffee.
| A．for | B．with | C．during | D．Over |
16.You can't imagine that a well-behaved gentleman__________be so rude to a lady.
| A．might | B．need | C．should | D．Would |