单项选择题
A.has left B.had left C.has been away D.had been away
The accident resulted （） the motorman’s carelessness.A....
单项选择题The accident resulted （） the motorman’s carelessness.
A.in B.to C.from D.by
The second engineer seemed to know what the sign （）.A.s...
单项选择题The second engineer seemed to know what the sign （）.
A.stand by B.stand for C.stood by D.stood for
We have just repaired the motorRemember （） to it during...
单项选择题We have just repaired the motorRemember （） to it during your watch.
A.to pay attention B.paying attention C.pay attention D.your paying attention
