Is she doing her homework? Jim asked.Jim asked _______ she was doing her homework.

Where is Tom? They asked.They asked ______ Tom was.

Who knocked at the door so loudly? I don't know.I don't know _______ knocked at the door so loudly.

I wonder __________ he is crying now.

A. that
B. why
C. how
D. when

Could you tell me how much __________ to fly to Hainan?

A. do it cost
B. does it cost
C. it cost
D. it costs

Could you show me ___________?

A. how can I get to the station
B. where is the station
C. how I could get to the station
D. how I can reach the station

My physics teacher said that light________faster than sound.

A. travels
B. travel
C. travelled
D. travelling

Lucy said she ____such a beautiful piece of music before.

A. hasn't heard
B. hadn't heard
C. doesn't hear
D. didn't hear

I don't know if it __________tomorrow, If it _____________, I'll not go fishing.

A. rains;rains
B. Rains;will rain
C. will rain; rains
D. will rain; will rain

They said that they ______ in a week.

A. will come back
B. would come back
C. come back
D. Came back