Someone is ringing the doorbell. Go and see ___________.
A. who is he B. who he is C. who is it D. who it is
One ought __________ for what one hasn’t done.
A. not to be punished B. to not be punished
C. to not punish D. not be punished
Luckily good things _________ here to save local wildlife.
A. are doing B. are being done
C. had been done D. will do
The earth became so violent that it was not clear_________ the shape would last or not.
A. if B. how C. whether D. why
__________ she couldn’t understand was _________ fewer and fewer students showed interest in her lessons.
A. What; why B. That; what C. What; because D. Why; that
The clever boy made a hole in the wall, ________ he could see what was going on inside the building.
A. on which B. at which C. through which D. in which
