The manager said that he would seek out methodsfor improving the quality of the product and () we should work harder than before.A what B /C thatD which请问考神马 选神马 为什么
问题描述：
The manager said that he would seek out methods
for improving the quality of the product and () we should work harder than before.
A what
B /
C that
D which
请问考神马 选神马 为什么
答
C
and两端的成分
he would seek out methods for improving the quality of the product 和we should work harder than before为并列关系，都用that引导
答
the manager said……后面是两个并列的从句,两个从句前一个that可以省略,后一个that就不可以省略.
所以选C.