There’s no way of knowing why one man makes an important discovery another man, also intelligent, fails.
#39533
A
since
B
If
C
as
D
while
推荐题目
—I hear you have to get up early every morning. —Right. It’s one of the _______ of my family.
#35773
A
plans
B
jobs
C
programs
D
rules
---What did you do last Friday? ---Sam played ________ chess and I played ________ piano.
#37787
A
the; the
B
the; /
C
/; the
D
a; the
It’s _______ Andy to plan everything well.
#43530
A
generous for
B
thoughtful of
C
silly for
D
stubborn of
--- Have you decided where to spend your holiday ? --- Not yet . I ______ go to Britain .
#37825
A
may
B
need
C
must
D
have to