____ has been proved again and again that ____ is said in the ads greatly affects people’s impression of the products.
| A．There; what | B．There; that | C．It; which | D．It; what |
She always buys me a nice present _________ she comes to see me .
| A．the first time | B．every time | C．the moment | D．immediately |
Only after Mary read her composition the second time _________ the spelling mistake.
| A．she noticed | B．she has noticed | C．did she notice | D．does she notice |
______ being fun and good exercise ,swimming is a very useful skill.
| A．Apart from | B．Except | C．Except for | D．Except that |
Come and see me whenever ____.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it was convenient to you |
It is strange that he _________ in such an important examination .
| A．failed | B．should fail | C．should have failed | D．fails |