Janewaslatefortwoclassesthisafternoon.shesaidthatsheforgotboththe()A.roomnumberB.roomnumbersC.room`snumberD.numbersofroomYouhadto()togetintothemuseumthreeyearsago,butnowit`sfree.A.costB.spendC.buyD.pay

Question

Jane was late for two classes this afternoon.she said that she forgot both the( )
A.room number B.room numbers C.room`s number D.numbers of room
You had to ( )to get into the museum three years ago ,but now it`s free .
A.cost B.spend C.buy D.pay

Answer 1

1. B
解释：这是固定搭配,用名词room修饰名词number.变复数时（前有both）,则room不用变,只需把number变成复数numbers.
A中的number为单数,不符合句意；
C中的room's不妥,就算用所有格也必须是rooms' numbers；
D中的room前面应该用定冠词the,且room也必须变成复数形式.
2. D
解释：cost的主语必须是sth/it,一般构成it cost sb + 金钱 + to do sth句型,排除A；
B/C中的spned/buy是及物动词,后面不能没有宾语sth,其对应短语分别是：sb spend + 钱 + on sth / (in) doing sth 和 sb buy sth for + 钱,排除.
而pay可以做不及物动词,意思也是“付钱/付款”,正解.