问题
                    
When Tom got to the examination room, he realized he ______ his pen at home.
                            A:was leaving
B:had left
C:forgot
D:was forgetting;
                        
                        B:had left
C:forgot
D:was forgetting;
正确答案是:
                         
                        
                        
                    同类题型
                    He tried to be ______, but his trembling hands gave him away.[ ]
Kitty and I felt sick for ____________.
Try not to start every sentence with “the”. _____ the beginnings of your sentences.
I feel highly by the kind things you said about me.
_____________grades you get in this exam, you should never lose heart.