请根据句意或括号中的中文提示、英文释义,写出句中所缺单词,使句子通顺。 (每小题1分,共5分) 小题1:We have a growing (人口) and therefore we need more food. 小题2:We all know that life is not always (平坦的). 小题3:As soon as I had made the final decision, I felt very (calm and not worried). 小题4:How can you (have enough money to buy something) such a large house? 小题5:I like black and red, but my favourite is blue. |