15.While he has failed again and again, he never gives up in order to________his dream.
The engine of the ship failed and the bad weather ______ the helplessness of the crew at sea.
It wasn’t until nearly a month later _______ I received the manager’s reply.
Many people have come to realize that they should go on ____ balanced diet and live _____ healthy life.
-------- Did you go to the film festival?-------- Yes, it was excellent. Zhang Yimou’s latest film was really a _______ for the eyes.
New ways have been found to prevent the river ______.