13.Youaswellright.A.IareB.IamC.asIamD.asIare15.--ShallIwaithereforthreehours?--Yes.Threehourstowaitforsuchadoctor.A.arenotverylongforyouB.isnotlongenoughforyouC.wasnotlongenoughforyouD.w

Question

13.You as well _____ right.
　A.I are B.I am C.as I am D.as I are
15.-- Shall I wait here for three hours?
--Yes.Three hours _____ to wait for such a doctor.
　A.are not very long for you B.is not long enough for you
　C.was not long enough for you D.will be too long for you
19.Three fourths of the bread _____ by Bob,and the rest of the bread _____ left on the table.
　A.was eaten/were B.were eaten/was　 C.were eaten/were D.was eaten/was
20.This pair of shoes _____.
　A.is her B.is hers　 C.are hers D.are her
21.There ______ no life on the moon.
A.is said to have B.are said to have C.is said to be D.are said to be

Answer 1

Aas well as这个对等连接词侧重在前者,而either...or,neither...nor,not only...but also都是就近原则,侧重于后者.Bthree hours表示一段时间,是一个整体,所以谓语动词用单数,当数词加名词表示金额、时间等概念的时候...