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(zhuǎn)過身來。

　　50. I will visit you around Christmas.

　　我將在圣誕節(jié)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(jīng)安排好派一個(gè)職員到飛機(jī)場接你。

　　55. We arrived home late.

　　我們到家時(shí)晚了。