请根据上下文内容, 将文中划线部分译成汉语或英语。

I enjoyed most of the classes, 【小题1】 but some of them were quite challenging. Technology classes were fun. I made a clock to take home. 【小题2】 The teacher helped me put the parts together. I like it so much that I still use it as my alarm! I found Maths quite easy and enjoyable because the material was less advanced in the UK than in China. 【小题3】然而, 用英语学习对我来说是一个巨大的挑战。There were a lot of difficult English words, especially in Geography and Biology. 【小题4】课堂讨论在英国很重要，but I could not make a great contribution because sometimes 【小题5】 I wasn’t able to express myself clearly in English. Although there was not as much homework as I was used to, it was still challenging. Fortunately, my teachers and classmates were always helpful and gave me lots of encouragement. My language skills improved over time.