高一英语单词拼写(实在想不起来了,
Onthiso_____,however,ithadsloweddownconsiderably.
Agoodcommand(运用能力;掌握)ofEnglishe_________youtocommunicatewithforeignbusinessmenfreely.
Theyhavebeentoldthatrescueoprationsarep______smoothly.
Hesaidthatsomeonemightbespyingonthestationandthepilotwasorderedtokeept________ofthestrangeobject.