A.the doorbell rang
B.the doorbell rings
C.we heard the doorbell ring
D.we heard the doorbell rings
A.If so
B.When necessary
C.When possible
D.If any
开始考试点击查看答案A.ifnotsolvedproperly
B.notifsolvedproperly
C.ifsolvedproperly
D.notifproperlysolved
开始考试点击查看答案A.loneliness was always around me
B.many interesting places were visited
C.I was a bit homesick
D.my friends in China encouraged me a lot
开始考试点击查看答案A.she surely welcomes it
B.she certainly deserves it
C.she is welcomed to it
D.it's good news
开始考试点击查看答案A.so he was not allowed to
B.and he didn't want to
C.the teacher couldn't make him
D.he couldn't free himself to
开始考试点击查看答案A.she angry
B.was angry
C.it was angry
D.angry
开始考试点击查看答案A.so he was forbidden to
B.and he didn't want to
C.his little son couldn't make him
D.he couldn't free himself to
开始考试点击查看答案A.are
B.was
C.is
D.were
开始考试点击查看答案A.if staging
B.if it stages
C.once staged
D.once it stages
开始考试点击查看答案A.If that
B.Even if
C.If so
D.If ever
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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