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

A.chosen
B.have been chosen
C.has been chosen
D.were choosing

A.2
B.3
C.4
D.5

A.I insisted on having been invited to her birthday party.
B.I was very glad to accept the invitation to her birthday party.
C.I regret accepting the invitation to her birthday party.
D.If only I had come to her birthday party.

A.\( - 1\dfrac{7}{{12}}\)
B.\( - 1\dfrac{5}{{12}}\)
C.\( - 1\dfrac{5}{6}\)
D.\( - 1\dfrac{2}{3}\)