Xiamen Xiang'an Tunnel, _____ is the first undersea tu
nnel built in mainland China, opened to traffic on April 26th．
| A．that | B．what | C．where | D．which |
Being constantly exposed to advertisements is annoying, but it ______ be pleasant sometimes.
| A．shall | B．need | C．can | D．must |
The witnesses ________ by the police just now gave very different descriptions of the fight.
| A．having questioned | B．being questioned |
| C．to be questioned | D．questioned |
―Your e-mail address again? I ______ quite catch it.
―It’s Kathy@163.com.
| A．don’t | B．didn’t |
| C．won’t | D．wouldn’t |
Those ______ have six or more close friends are described as “very happy”.
| A．whose | B．who | C．which | D．when |
Health experts believe that even a little exercise is far better than ______ at all.
| A．none | B．little | C．everything | D．anything |