问大家几个英语问题．在线等1.Thisisthecartheygotherein.a,bywhichb,whichc,onwhichd,inthat(这道题可以详细的解答一下吗?)2.Thefloorneedsthisafternoon,butyouneedn'titbyyourse

Question

问大家几个英语问题．在线等
1. This is the car ____ they got here in.
a,by which b,which
c,on which d,in that
(这道题可以详细的解答一下吗?)
2. The floor needs ____ this afternoon, but you needn't ____ it
by yourself.
a,cleaning;do b,to clean;to do
c,cleaning,doing d,clean;do
(这道题也可以详细的解答一下吗?)
3. --When will you come back ?
--I am not sure.Maybe ____.
a,in five days b,after five days
c,five days later d,for five days
(这道题也可以详细的解答一下吗?)
谢谢大家了

Answer 1

1〉B
改变一下语序：They got here in the car.
原句中有介词,所以定语从句结构中先行词之前不用加介词
2〉A
clean 可以主动形式表被动含义,也就是常说的“主动表被动”
need 可以做实意动词,也可以做主动词,
做实意动词使用时,否定形式为“don't need",
做主动词使用时,否定形式为"needn't" 所以这里是主动词
主动词后面跟动词原形.
3〉A
in five days 五天之内,表将来时,而且是一个时间段,意思是说五天内的任意一天都有可能回来.
after five days 五天后,一般是指五天后的一个时间点
five days later 常常用在过去将来时里.一般有故事情节时采用.
for five days 表示在这五天里一直持续做某件事情,一般不常用.