I__ a great deal in the last few months .为什么是have accomplished ,要有have?Sentences can be broken up into clauses,and clauses can be (consist of )phrases.为什么是consist,而不是consisted?

问题描述:

I__ a great deal in the last few months .为什么是have accomplished ,要有have?
Sentences can be broken up into clauses,and clauses can be (consist of )phrases.为什么是consist,而不是consisted?