A.have been preparing
B.had prepared
C.have prepared
D.was preparing
A.competing
B.having been competed
C.to compete
D.to be competed
开始考试点击查看答案A.saves
B.saved
C.will save
D.will have saved
开始考试点击查看答案A.have stopped smoking
B.smoked
C.began to smoke
D.started to smoke
开始考试点击查看答案A.was enjoyed
B.enjoyed
C.had enjoyed
D.enjoys
开始考试点击查看答案A.didn't see
B.hadn't seen
C.hasn't seen
D.wouldn't see
开始考试点击查看答案A.takes off
B.is taking off
C.has taken off
D.took off
开始考试点击查看答案A.doesn't finish; comes
B.hadn't finished; came
C.hasn't finished; came
D.didn't finish; came
开始考试点击查看答案A.can have been taken
B.ought to be taking
C.must be taken
D.should take
开始考试点击查看答案A.writes to
B.has written to
C.wrote to
D.is writing to
开始考试点击查看答案A.write
B.was writing
C.have written
D.have been writting
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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