帮我解析下下列几道单项选择怎么选的,()6．IhavejustbeentoIhavegotabadcold.A.thedoctorB．thedoctor'sCthedoctorsD.doctor's()12．Ithasbeensincewelastmet.A．sometimeB．sometime

Question

帮我解析下下列几道单项选择怎么选的,
( )6．I have just been to _________ I have got a bad cold.
　　A .the doctor B．the doctor's C the doctors D.doctor's
( )12．It has been ______ since we last met.
　　A．some time B．sometime C．sometimes D．some times
( )14．----How often do you go back your hometown?
　　---- two years.
　　A．Every B Each C.In D．For
( ）17．The children all looked _______at the broken model plane and felt quite____.
　　A.sad,sad B．sadly,sadly C．sad,sadly D.sadly,sad.
( )18.The street _______.They had to drive around the city.
　　A．was being repaired B．had to repaired C．was repairing D．was to repair
( )28．---Look!This pair of jeans is very good.----____________________________?
　　A.Why not trying it on B.Why not try it on
　　C .Why not try on it D.Why not trying on it

Answer 1

6B 在职业的后面加s表示……的场所,因为英美人一般有自己固定的医生所以doctor前有the
12A 1) some time一段时间2）sometime谋时3）sometimes有时 4）some times 几次
14 A every two years每隔两年
17 A looked和felt是系动词后面接形容词
18 A 因为主语the street和谓语repaire是被动关系所以应该用被动语态.
28B 1) 句型Why not do sth?2)词组试穿try on中的on是副词所以必须说try it on