My attention was beginning to wander and therefore I am afraid that I ____ the main point of the lecture.
A．had missedB．missedC．was missingD．have missed
B
根據(jù)句子意思,我的注意力開始不集中,因此我害怕我錯過了這次講座的主要觀點.可知下文敘述的是過去發(fā)生的事情,也就是我注意力渙散時的事情,所以應(yīng)該用過去時態(tài),選B.
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