It seemed that I had become ________ my parents had wanted me to be.
when
where
what
whether
In my opinion, to eat more vegetables and play some sports is __________ to our health.
—Will Thursday or Friday __________ you? —Either will __________
Experiments of this kind __________ in both the U. S. and Europe well before the Second World War.
It's no use __________ without taking action.
Even the best writers sometimes find themselves __________ for words.