enshan, whose overwork ______ his healthfailure, didn’t perform in the 2012 Spring Festival Gala on CCTV.

32. Buses have routes. They ________ and ________ people at different places on the routes.

Thank you __________ helping me when I have some problems __ my English.

The factory produces half a million pairs of shoes every year, 80% _______ are sold abroad.

Let’s play ping-pong.—Well, we don’t have a________.