All the scientific evidence ______ that increasing use of chemicals in farming______damaging our health.
What a table! I’ve never seen such a thing before. It is _______ it is long.
— How long do you think it will be _______ the USA recovers from the losses of the financial crisis? — Perhaps four or five years.
Listening attentively in class and reviewing in time _______ a sure way to improve your learning, and this is especially true _______ it comes to standard tests.
Though the teacher had tried to make the problem easy _______, still Lily and her partner were at a loss.
_______ difficult the task may be, we must finish it on time, because we can’t miss _______ a precious opportunity.