问题
选择题
________ made us very pleased was ________ the China Pavillion(中国国家馆) attracted a lot of visitors.
A．What; that
B．What; whether
C．That; that
D．Which; that
答案
答案：A
主语从句缺少主语，故用what；was后是表语从句，表语从句不缺成分，故用that引导。“使我们很高兴的是，中国国家馆吸引了很多游客。”故选A。