— Could I have a word with you, mum?
— Oh dear, if you __________.
| A．can | B．must |
| C．may | D．should |
As the________of Thomas Edison shows, a child who typically questions the most common facts may turn out a genius as a grown – up.
| A．case | B．situation | C．condition | D．way |
It was your lie about your education background______cost you the opportunity to get the job.
| A．which | B．it | C．that | D．and |
Male nurses are not____________are needed most, but female doctors are.
| A．who | B．that | C．what | D．those |
The wild flowers looked like a soft orange blanketthe desert.
| A．covering | B．covered | C．cover | D．to cover |
Generally speaking, ______ according to the directions, the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |