We ________ jump to conclusions before we have all the facts.
| A．couldn't | B．mightn't | C．shouldn't | D．mustn't |
In more recent decades, California has become __________ home to more people from Asia.
| A．a | B．an | C．the | D．/ |
I’ve just read an excellent book of Moyan’s, ___________ you cannot afford to miss.
| A．that | B．what | C．one | D．whom |
I had just settled in the new place and didn’t know ____________________.
| A．what to expect | B．what to be expected |
| C．how to expect | D．how to be expected |
In fact, I wonder _________ my efforts were all in vain.
| A．that | B．which | C．why | D．where |
Cloning plants is straightforward while cloning animals is _____________ more complicated.
| A．very | B．far | C．fairly | D．quite |