{01}5. In our class, when the bell rang and the taacher closed his book, it was a or everyone to stand up.
A.signal
B.chance
C.mark
D.measure
解析: signal 信号; chance 机会; mark 记号;measure 措施。句中的it 代替“铃响时教师合上书”这件事,而“它”正是大家要起立的“信号”。 本题选A。
{02}Your ________ as a student will be excellent if you develop a habit of reflecting on how you learn. [ ] A.operation B.growth C.performance D.character 解析: 本题选。
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