The change was so _____ that we hardly noticed it.
A. actual B. frequent C. gradual D. grateful
English words are not always spelt_____________.
A the way which they sound B by the way they sound
C the way they sound D as they are sounded
The astronaut did many experiments in the spaceship,__________________much help for knowing space.
A. which we think it is B. which we think are of
C. of which we think is D. I think which is of
Once ____________ , a plan should be carried out.
A. make B. making C. made D. to make
—"How do you like the book?"
— "It's quite different from I read last month."
A. that B. which C. the one D. the one what
He failed in the examination, ________ made his father very angry
A. which B. it C. that D. what
