A.who
B.whom  
C.that  
D.whose

A.what
B.whom  
C.who  
D.which

A.whom
B.whose  
C.that  
D.which

A.what
B.which 
C.where
D.that

A.whose
B.who 
C.whom
D.that

A.who
B.whom
C.him
D.that

A.must
B.need
C.ought
D.might

A.wouldn’t
B.oughtn’t
C.needn’t
D.couldn’t

A.could have helped
B.might help
C.would help
D.can help

A.were injured
B.are injured
C.was injured
D.have been injured