The new product which was developed ____the customer demand will come into the market next month.

We all knew from the very _____ that the plan would fail.

I can something biting my feet in the water.— Can you It may be a fish.

It was in the lab, ________ was taken charge of by Professor Curie, _______ they did the experiment.

Someone who lacks staying power and perseverance is unlikely to ___ a good researcher.[ ]