The clever boy made a hole in the wall, _____ he could see _____ was going on inside the house.
A. which; what B. through which; what
C. through that; what D. what; that
---Do you have anything to say for yourself?
---Yes, there is one point ________ I must stick to.
A. / B. when C. why D. where
The thief went into the house at midnight, only ______ by the policemen hiding there.
A. to catch B. catching C. to be caught D. caught
In spite of the great difficulties, Helen Keller ______ studying and finally succeeded.
A. stuck to B. kept up with C. kept on D. insisted on
If you ______ succeed, you will have to work hard.
A. are about to B. are going to C. will D. are to
The judge thought that the evidence was not ________ to the case.
A. similar B. accessible C. available D. relevant
