______ (要么是你，要么是我弄错了) the departure time of the train.
To thatch roofs, primitive peoples were dependent on ______.
This passage aims to make the public aware of ______.
Questions 11 to 18 are based on the conversation you have just heard.
A. She has finished only one step.
B. She doesn’t have any more time for redecorating.
C. The work has been completed.
D. The redecorating is being done gradually.
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