48. He looked around but could see nobody.

他四處望了一下，看不到什么人。

49. He turned around as he heard a noise behind him.

他聽到身后有響聲，便轉過身來。

50. I will visit you around Christmas.

我將在圣誕節前后去拜訪你。

51. My sister is around your age.

我妹妹和你年齡相仿。

52. I arranged the flowers in the vase as soon as I came back home.

一回到家里，我就把花在花瓶里插好。

53. I have arranged with him to meet at the restaurant.

我和他約好在飯館見面。

54. I have arranged that one of my staff will meet you at the airport.

我已經安排好派一個職員到飛機場接你。

55. We arrived home late.

我們到家時晚了。