It is these poisonous products _______can cause the symptoms of the flu, such as headache and aching muscles.
| A．who | B．that | C．how | D．what |
Unfortunately, a storm broke out. Otherwise, the boat ______.
| A．didn’t sink | B．wouldn’t have sunk |
| C．wouldn’t sink | D．hadn’t sunk |
You’re usually such a mild person, but you ______ in a bad mood for the last week.
| A．had been | B．were | C．were to be | D．have been |
— What do you think will prove to be the best thing that has ever happened to you? — ______.
| A．Laying off | B．Getting laid off |
| C．Laid off | D．Lay me off |
This article deals with the extent ______ family life has changed over the past 30 years.
| A．in which | B．at which |
| C．to which | D．on which |
Our school motto reflects the importance we ______ to good manners, hard work and success.
| A．place | B．attach | C．pay | D．Turn |