题目

题型：不详难度：来源：

---Is it Pro. King that will give the lecture on radiation?
--- I can"t __ I know it for sure.

A．say

B．tell

C．speak

D．talk

答案

.A

解析

考一组动词同义词的区别。意思是“我不敢说我对此事十分清楚。”say后要跟所说的内容。tell的固定用法为tell sb about sth，tell a story，tell a lie，tell the truth；而speak则是speak to sb, speak at a meeting, speak English; talk的通常用法为talk to/with sb；talk about sth。