-Miss Li,could you please help me ______ this math problem?
-OK. Let me try.
本题考查动词短语的辨析。三个选项的含义分别是：look up 查阅，work out 算出，解决，set up 成立。由题干中的this math problem “这道数学题” 可推断，work out 符合题意。
We all look forward to _____ you again soon.
look forward to 的用法
我们可用 “固定搭配法” 解答本题。look forward to doing sth. 为固定搭配，意为 “期盼/盼望做某事”。句意：我们都期盼很快再次见到你。
Success doesn't come easily. _____ you do,you should put your heart into it.
句意：成功不是那么容易就取得的。无论你做什么，都应该全心投入。表示 “无论什么” 要用 whatever，故答案为选项B。