A.was doing
B.had been doing
C.has done
D.did
A.A.has ; bought
B./; bought
C.did ; buy
D.had ; bought
开始考试点击查看答案A.had rang; was
B.has rung; was
C.rang; has been
D.has been ringing; is
开始考试点击查看答案A.didn't quite catch
B.don't quite catch
C.hadn't quite catch
D.can't quite catch
开始考试点击查看答案A.didn't finish
B.haven't finished
C.hadn't finished
D.wasn't finishing
开始考试点击查看答案A.have had
B.was having
C.had
D.am having
开始考试点击查看答案A.is building; takes
B.is being built; will take
C.is built; will take
D.is being built; takes
开始考试点击查看答案A.think; lost
B.thought; had lost
C.think; had lost
D.thought; have lost
开始考试点击查看答案A.will release
B.are releasing
C.has been released
D.has released
开始考试点击查看答案A.works
B.is working
C.has worked
D.worked
开始考试点击查看答案A.A.was waited
B.was waiting
C.has waited
D.have been waiting
开始考试点击查看答案高中数学代数与函数一数系的扩充与复数的引入36
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入28
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入29
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入30
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入31
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入32
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入33
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入34
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入35
类别:数学(文科)高中数学代数与函数一数系的扩充与复数的引入26
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