1.(What)was the weather like in Shanghai last night?
问的是：昨晚上海的天气怎么样,也就是“什么”的,用“what”,记住这是个固定句式：.What was the weather like ...
2.You will see the wonderful programmes(on)TV.
这个事固定短语：on TV
3.Don't forget (to) （call） me after work.
固定短语：forget to do sth.忘记做某事
4.We were all(excited)(excite)when we heard the news.
excited表示"兴奋的",指人、物对.感到兴奋；
exciting表示"令人兴奋的；使人激动的",指人、事、物本身让人兴奋、激动.
一般情况下,是人做主语,用v-ed； 物做主语,用v-ing.
He was excited at the news.
The news that our team won is exciting.