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
—Do you know Peng Liyuan?—Of course, she is _______ First Lady of China, _________ famous singer.
#40431
A
a, a
B
the, a
C
the, the
D
a, the
When the father heard from his son from abroad, he became ________.
#38532
A
exciting
B
happily
C
happiness
D
excited
— How much of his speech do you think you have understood?— . I wish I had worked harder.
#35936
A
Quite a few
B
Very few
C
Next to nothing
D
Quite a lot