24. Only when the meeting began _______
题型:选择题
问题:
24. Only when the meeting began _______ that he had left his papers at his office.
A.will he realize
B.he did realize
C.did he realize
D.should he realize
24. Only when the meeting began _______ that he had left his papers at his office.
A.will he realize
B.he did realize
C.did he realize
D.should he realize