In the dark forests _____, some large enough to holdseveral English towns.

There are different kinds of presents in the gift shop. I can’t decide _______.

I could have called you for help, but I ____ your number.

Excuse me, but can you help me to repair my MP5 ?—Why not _______ your knowledge of physics _______ practice?[ ]

He failed the final examination and only then ____ how much time he had wasted.