问题
选择题
No matter how frequently _____ the works of Beethoven always attract a large number of
people.
A．performing
B．performed
C．to be performed
D．being performed
答案
答案：B
在让步，时间等状语从句中，如果主从句中主语一致，从句中谓语含 be动词，可以将从句中的主语和 be 省略，即在how 后加they(the works) are，再分别与选择项搭配后，就会发现正确答案是B。