Up to now, he _______ most of the works by Mark Twain.
#102590
A
is reading
B
has read
C
will read
D
reads
推荐题目
Although the causes of cancer_____, we do not yet have any practical way to prevent it.
#104936
A
are being uncovered
B
have been uncovering
C
are uncovering
D
have uncovered
—Well, that was really a good meal. I _______ you were a really good cook.—Thank you.
#104832
A
didn’t know
B
don’t know
C
haven’t know
D
hadn’t known