单项选择题
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
Rounds （）Everything is in good order.A.operatedB.madeC....
单项选择题Rounds （）Everything is in good order.
A.operated B.made C.run D.done
Tell the engineer on duty to keep close watch over the ...
单项选择题Tell the engineer on duty to keep close watch over the machine （）temperature is sometimes a bit too high.
A.which B.what C.that D.whose
