【单选题】According to the man, what sort of safety feature is used on the filters7
A.
They become clogged before losing effectiveness.
B.
They're equipped with built-in measuring devices.
C.
Their safety, limits are clearly marked.
D.
They change color when no longer effective.
【单选题】—Clean-Up Day is coming. How do we let more people know it? —We could ____ advertisements after school.
【单选题】What sort of women does the first man like?
【单选题】_____the fog,we should have reached our schoo1.
【单选题】We learn from the passage that Computertown USA was a______
【单选题】What sort of accommodation does the man prefer?
A.
Double room without independent bathroom.
B.
Single room with independent bathroom.
C.
Suite with independent bathroom.
D.
Single room without independent bathroom.
【单选题】What sort of women does the second man like?