Which of these tenses is Past Perfect Simple? It is ..........
A.She had laughed
B.She has been laughing
C.She laughed
D.She was laughing
正确答案是1
Which of these tenses is Past Perfect Simple? It is ..........
A.She had laughed
B.She has been laughing
C.She laughed
D.She was laughing
正确答案是1