—Jack ,I have ________working out the math problem .--Don’t worry . Let me help

题型：不详难度：来源：

—Jack ,I have ________working out the math problem .
--Don’t worry . Let me help you .
A. fun B. trouble C. experience

答案

解析

试题分析：fun 乐趣，趣事；trouble麻烦；experience经验，经历。句意：杰克，解决这道题我有点麻烦。——不用担心。我来帮助你。Have trouble doing sth做某事有困难。故选B。

举一反三

He could play the violin when he was five.

A．at the age of five

B．five years later

C．for five years

D．five years age

题型：不详难度：| 查看答案

- Which of the two T-shirts would you like? - ________. I don"t like their styles.

A．Either

B．Both

C．None

D．Neither

题型：不详难度：| 查看答案

---How was _______dinner at Mike’s house?
---It was great. Mike’s mum is _______ wonderful cook.

A．a; the

B．the; a

C．the; the

D．a; an

题型：不详难度：| 查看答案

He was very ill, but now he is out of danger.

A．dangerous

B．safe

C．safely

D．in danger

题型：不详难度：| 查看答案

- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.

A．if

B．unless

C．until

D．when

题型：不详难度：| 查看答案