A.have tried
B.have been trying
C.had tried
D.had been trying
A.am waiting
B.was waiting
C.have been waiting
D.will be waiting
开始考试点击查看答案A.work
B.are working
C.worked
D.have been working
开始考试点击查看答案A.are surfing
B.surfed
C.have surfed
D.have been surfing
开始考试点击查看答案A.are
B.will have been
C.have been
D.will be
开始考试点击查看答案A.would have learnt
B.have learnt
C.will learn
D.will have learnt
开始考试点击查看答案A.was expecting
B.had expected
C.have been expecting
D.expected
开始考试点击查看答案A.have been missing
B.have got lost
C.be missing
D.get lost
开始考试点击查看答案A.will rain
B.is raining
C.will be raining
D.would rain
开始考试点击查看答案A.has been going
B.went
C.goes
D.has gone
开始考试点击查看答案A.have worked
B.are working
C.have been working
D.worked
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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