Tigers _______ meat-eating animals, _______ meat. A belonged to, fed on B belonging to, feed on C were belonged to,feed on D belonging to,feeding 这题选B，不太明白第二个空为什么用原型，求教老师？是定语从句吗？
_______as much as one fourth ofall timber harvested is not use proved
to be false.
A.The estimate B.The estimate C.they are estimate D.It is estimated
that
请问老师为什么不能选D?
...ou enjoy ______ your spare time, playing cards at home or taking a walk in the park? 我知道可以填 to spend 构成目的状语。但我的另一个理解是 enjoy spending your spare time (in) which. which 代指 playing cards at home or taking a walk in the park 作(in) 的宾语。翻译成...
The companies are working together to create________they hope will be the best means of transport in the 21st century.A.which B.that C.what D.whocreate后面跟的是宾语从句吗, whatthey hope又是什么从句， 为什么三个谓语动词只出现了一个连接词呢?
...#39;d better _____ faster, or we'll be late.
—Don't worry. The transportation has _____a lot since the government finished building the subway.
A. drive; been improved
B. to drive; improved
C. drive; improved
我认为A和C都正确，因为improve既是及物动词，又可...
... have a business meeting tomorrow, I' m afraid I can' t make it.A: __________!A) Whata pityB) That's too bad C) Whata shameD) That' s such a pity答案给的是BC，但AD不也有遗憾的意思吗？具体有什么区别呢？
—How impressive China's 70th anniversary of National Day parade is!—Definitely. If only I _______ on the scene.A were B had been答案用的是had been。为什么were不可以呢？现在是两个人的对话，说话的时候并没有在现场与现在情况相反。
China has put forward the concept of “quality education” for many years, ________the exam-oriented education hasn't changed.A. yet B. since C. but D. whether答案为 C, 为什么 A ...