A.have had; is running
B.had; is running
C.have; has been run
D.have had; has been run
A.has been
B.are
C.is
D.have been
开始考试点击查看答案A.was happening
B.to happen
C.has happened
D.have happened
开始考试点击查看答案A.I have had
B.I had
C.have I had
D.had I
开始考试点击查看答案A.had parked
B.was parking
C.parked
D.has parked
开始考试点击查看答案A.have I felt
B.I had felt
C.I have felt
D.had I felt
开始考试点击查看答案A.jumped
B.had jumped
C.is jumping
D.has jumped
开始考试点击查看答案A.will happen
B.has happened
C.was happening
D.had happened
开始考试点击查看答案A.improved
B.is improving
C.has improved
D.has been improving
开始考试点击查看答案A.hasiPhone4become
B.iPhone4hasbecome
C.hadiPhone4become
D.iPhone4hadbecome
开始考试点击查看答案A.iPhone 4 has become
B.iPhone 4 had become
C.has iPhone 4 become
D.had iPhone 4 become
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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