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
单项选择题 Rounds ()Everything is in good order.
单项选择题 Tell the engineer on duty to keep close watch over the machine ()temperature is sometimes a bit too high.
单项选择题 I am afraid you can’t dismantle the equipment in that way ().