问题
选择题
He was about to tell me the secret ________ someone patted him on the shoulder.
A.as
B.until
C.while
D.when
答案
.D
此题考查be about to do something when…这个句型的用法,when的意思是:这时(at the time). 这句话的意思是:他正要告诉我这个秘密,这时有人拍他的肩膀。