They…. here for three years before.... you.... last week.
A.have worked / came
B.have been working / come
C.was working / had come
D.had been working / came

These students.... hard since the beginning of the school year because they.... their graduation exam next May.
A.studied / are going to take
B.are studying / will be taking
C.study / will have taken
D.have been studying / will take

The students.... chapter 5 next week, so they.... to prepare for it now.
A.have studied / will read
B.are studying / have read
C.will study / read
D.will be studying / are reading

When the director asked____respon-sibility the project was, he was told that it was the CEO’s.
A.who
B.which
C.whose
D.that

Mr. McKenzie____has been working on the campaign longer than anyone else will take charge of the project.
A.whom
B.whose
C.who
D.which

Only Speedy Shipping offers a variety of delivery options____utilize both air and sea transportation.
A.why
B.that
C.where
D.what

The Mother Nature Garden Show, ____ annually demonstrates the newest technology in horticulture, draws over 5.000 attendees during its week-long run.
A.when
B.which
C.where
D. whose

We are currently seeking a partner firm ____ marketing principles are similar to our own.
A.who
B.which
C.where
D. whose

At a meeting yesterday, we studied the most recent budget proposal,____the board thinks will help pull the corporation out of debt.
A.whether
B.where
C.which
D.that

Changes in our organizational structure have created ways for employees to explore opportunities____were previously not available.
A.what
B.those
C.that
D. there