Children’s brains can’t develop properly_______ they lack protein(蛋白质).
| A．when | B．since | C．because | D．unless |
If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.
| A．coming | B．having come | C．to come | D．to be coming |
However weak we are, we can still do something against the powerful nature as long as we are ______ prepared.
| A．specially | B．physically | C．adequately | D．equally |
It is his cleverness, not his strenth, ____ defeated his rival.
| A．that | B．which | C．what | D．who |
______ by jeep, we visited a number of cities in South China.
| A．Traveling | B．Traveled |
| C．To be traveling | D．Having traveled |
---Hi, Lucy．Have you heard of any good news about Frank recently?
---Yeah．She ____ have done better．She has been admitted to one of the top-ten universities in the States．
| A．shouldn’t | B．wouldn’t | C．needn’t | D．couldn’t |