Question

（湖南省一聯(lián)模擬）What the science teacher does and says ________ of great importance to college students.

1. A.
   was
2. B.
   are
3. C.
   is
4. D.
   were

Answer 1

C
句意：那位理科老師所說的話，所做的事對(duì)于大學(xué)生來說當(dāng)然非常重要。主語(yǔ)從句雖然有兩個(gè)謂語(yǔ)動(dòng)詞，但引導(dǎo)詞只有一個(gè)，即what，故謂語(yǔ)動(dòng)詞用單數(shù)，且本句需要用一般現(xiàn)在時(shí)。