24. It is _____ that my nephew is really fond of classic music, which he has been exposed to (熏陶)for years.
At times the balance in nature is ______ , resulting in a number of possibly unforeseen effects.
He _____the problem _____in his mind for a whole week before he did anything about it.
You _____only half the price ,how would the seller sell the jacket to you ?
In the cross-lake swimming race, a boat will be ____in case of an emergency.
The teacher has a peculiar way of ______her student’s nervousness when then speak English.