问题:
The detective is busy ________ clues and he has ________ some valuable proof.
A.looking for; find
B.finding; looked for
C.looking for; found
D.finding; looking for
The detective is busy ________ clues and he has ________ some valuable proof.
A.looking for; find
B.finding; looked for
C.looking for; found
D.finding; looking for
A.looking for; find
B.finding; looked for
C.looking for; found
D.finding; looking for
参考答案: