1、他一點也不著急，在他交卷子之前又仔細地看了一遍，以確保沒有任何錯誤。2、他的懷疑源于他太多的失敗的經歷。

熱心網友

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.