问题
Not until he received the invitation ________to attend the summit held in New York.
A:did he decide
B:he had decided
C:had he decided
D:he decided
B:he had decided
C:had he decided
D:he decided
正确答案是：
同类题型
But why ? He simply ignored my words.—He couldn’t have heard you. Look, he’s ________in the book.
Must I do the work today? —No, you _______. You may do it tomorrow.
His failure suggested that hetheteacher’s suggestions
－How long hasyour grandpa ______－For about 3months.
Cloning humans has been _____ in the science world for many years and it is likely to continue .