1、他一点也不着急，在他交卷子之前又仔细地看了一遍，以确保没有任何错误。2、他的怀疑源于他太多的失败的经历。
热心网友
1.He did not feel anxious at all,but went over his test paper once again before handed it in so to make sure (that)there was not any mistakes or errors on it.2.His doubts originated from experiences of too many failures.