I can hardly imagine his arguing with his boss. He always ________ me as a cool-headed man
| A．strikes | B．takes | C．treats | D．regards |
_______ you may have, you should gather your courage to face the challenge.
| A．However a serious problem |
| B．What a serious problem |
| C．However serious a problem |
| D．What serious a problem |
It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.
| A．that | B．what | C．how | D．whether |
A lot of language learning,________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.
| A．as | B．it | C．which | D．this |
Between the two parts of the concert is an interval,________ the audience can buy ice-cream.
| A．when | B．where | C．that | D．which |
The printer is of good quality. If it ________ break down within the first year, we would repair it at our expense.
| A．would | B．should | C．could | D．might |