题干
-Your room is in a mess, David.
-I'm sorry. I'll __________ right now.
A：pick k up
B：clean it up
C：clean up it
D：turn it up
答案(点此获取答案解析）
B
-Your room is in a mess, David.
-I'm sorry. I'll __________ right now.
A：pick k up
B：clean it up
C：clean up it
D：turn it up
