Weareallconcerned_______hersafety.
A、aboutA
be concerned about：关心，担心。句意：我们大家都担心着她的安全。
重写句子：Alan passed the test. Alan had studied hard. Alan had understood the material.(complex sentence)
改写病句：Peterorderedthemealforhisfriendsrangingfromfriedshrimptochoppedbeef.
Ifyou_______inbehavinginthiswayyouwillbringyourselfnothingbuttrouble.
重写句子：Hockeyisasportwhichispopularinmanycountriesaroundtheworld.(simplesentence)
重写句子：We slipped on the road when we could see no lights in the heavy rain that night.(periodic sentence)
