A.was shining
B.is shining
C.shines
D.shone

A.isn't she
B.doesn't she
C.didn't she
D.won't she

A.by the time the boss arrives
B.after the boss had arrived
C.as soon as the boss had arrived
D.when the boss arrived

A.noticed
B.finished
C.supported
D.approached

A.noticed
B.finished
C.supported
D.approached

A.stone
B.zone
C.phone
D.none

A.relax
B.enter
C.behave
D.allow

A.relax
B.enter
C.behave
D.allow

A.separated
B.removed
C.divided
D.disagreed

A.\(m = \dfrac{{3\sqrt 2  - 2}}{4}\)
B.\(m = \dfrac{{\sqrt 2  + 2}}{4}\)
C.\(m = \dfrac{{3\sqrt 2  - 4}}{4}\)
D.\(m = \dfrac{{\sqrt 2  + 4}}{4}\)