Thank you so much for your feedback! It really is greatly appreciated :-) With the words I used which are the ones you think need the most work?
The app I'm using is so comprehensive, I'm sure they talk about the four tones, I need to learn these before moving forward, this week I'm going to start to tackle longer sentences :-)
at - 在 - the pinyin is zai (forth tone).
airport - 机场 - the pinyin is ji (first tone) chang (third tone)
office - 办公室 - the pinyin is ban (forth tone) gong (first tone) shi (forth tone)
Thank you, that is very helpful, I need to mould my tongue to these new tones :-)
Cg
You are most welcome!
Happy Learning!