A scientific hypothesis is tested in a series of ____ experiments.
A.controlled
B.limited
C.theoretical
D.supervised

After ____ attempts, Michael finally passed his graduation examination.
A.repetition
B.repeated
C.repeatable
D.repeating

That English will become dominant in most scientific fields is ____.
A.predicting
B.predictable
C.on predictions
D.to predict

Their flat is decorated in a ____ combination of colour.
A.tasteful
B.sweet
C.delicious
D.tasty

He is ____ listening to his sister’s advice.
A.bored in
B.tired in
C.tired of
D.interested with

When they let us go in, we ___ outside the exam room for over half an hour.
A.had been standing
B.have been standing
C.have stood
D.are standing

By the time I came home, my mother _______ for the meal.
A.was preparing
B.prepared
C.prepare
D.had prepared

“Did you stay up late yesterday?” “Not really. I went to bed after Monica___"
A.had left
B.was leaving
C.leaving
D.has left

I got up late because my alarm clock__ _____.
A.hadn’t gone off
B.didn’t go out
C.didn’t go off
D.hadn’t gone out

I ____to go to Yellowstone, but my wife got sick three days before the departure.
A.have been planning
B.had planned
C.have planned
D.was planned