_______ Mary ______ John has been to China before, but they know a lot about it
#57612
A
Either, or
B
Both, and
C
Neither, nor
D
Not only, but also
推荐题目
_____ Mom had asked Jack to close the window before he went out,______ he forgot to do it.
#58519
A
Though; /
B
Though; but
C
Till; /
D
Until; then
Mrs. White came back late the heavy rain yesterday afternoon.
#57323
A
because
B
because of
C
but
D
since
