我们都知道语法词汇的重要性，这就需要同学们平时多加训练，环球博海小编特整理了2013年英语四级语法词汇强化习题(23) ，希望能够帮助到大家!

　　211.1,3,5,7 and 9 are _______ numbers and 2,4,6 and 8 are not.

　　A.odd B.even C.extra D.nut

　　212.He always _______ to everything and never agrees with anybody.

　　A.projects B.gives C.folds D.objects

　　213.I was born in Japan, but I have _______ Chinese citizenship.

　　A.retained B.represented C.reported D.required

　　214.He made a rough _______ of the first floor of that building, showing us where his office was located.

　　A.painting B.illustration C.drawing D.sketch

　　215.He is deeply _______ in the trouble of his company.

　　A. involved B.occurred C.packed D.represented

　　216.He always leaves _______ for all the words he does not know in his translation.

　　A.blankets B.blind C.black D.blanks

　　217.Smoking and drinking are regarded as _______ in some countries because they do no good to health.

　　A.vices B.habits C.customs D.copies

　　218.The news has not yet been officially _______ by the government.

　　A.struck B.confirmed C.founded D.pointed

　　219.These are two _______ issures, but people often take them as one.

　　A.ruin B.nest C.distinct D.castle

　　220.What _______ did you watch on television last night?

　　A.wave B.frequency C.channel D.tunnel