—What do you think of the performance today? —Great! ___ but a musical genius could perform so successfully.

There is------in his words. We should have a try.

(2013·陕西五校二模)—How do you like the book?—It's quite different from ________ I read last month.

What _________ things can I do for you?

Low – carbon lifestyle is of great benefit to improve the world environment．        can be enjoyed from it until you have a deep understanding of it, however．