( ) 26. It’s time to have class. Let’s stop ______.
A. to talking B. talking C. talk D. to talk
( ) 27. More and more students _______ too much homework and they are really tired of it.
A. complain about B. think about C. know about D. worry about
( ) 28. Weifang has become famous ___________ kites from then on.
A. for making B. to make C. of fly D. about flying
