It was _______ he does _______ makes his students enthusiastic about school. (原创)
The boy went swimming in the deep lake,________ his mother’s fear for his safety.
—What’s the price of petrol these days?—It ________ frequently since last year.
Hardly ________ when the flood peak arrived.
—$100,but that is my last offer.—________
He wants to see ________ much stronger China within ________ rest of his life.