suggest 引導(dǎo)的虛擬語(yǔ)氣一般只去掉should,但是是可以去掉that的,因?yàn)閠hat在句子中相當(dāng)于引導(dǎo)賓語(yǔ)從句,所以可以省略（個(gè)人理解）,所以不必糾結(jié)于that能不能去掉,寫(xiě)上去就是了,這應(yīng)該不是個(gè)考點(diǎn).
同位語(yǔ)從句只用that引導(dǎo),which不行.用which就成了定語(yǔ)從句.
whom是who賓格,意思誰(shuí),例如My mother asked whom I went with to the park.(whom就是go with 的賓語(yǔ))
whose的意思是誰(shuí)的,The teacher said whose homework did not hand in?(老師問(wèn)誰(shuí)的作業(yè)沒(méi)有上交)
它們都能引導(dǎo)定語(yǔ)從句,但不能引導(dǎo)同位語(yǔ)從句.
4 degree Centigrade
two thirds 如果分子是單數(shù),分母不加“s”.謝啦不客氣