Alice came back home the day before yesterday—— Really ? Where ＿＿＿＿＿ ?

The engineers are so busy that they have no time for outdoor sports activities，________ they have the interest

______ do you go hiking— Once a week.

____is “Lucky 52” shown on CCTV-2 Every week.

Do you know the boy_______ is playing football over there—Certainly. He is a friend of mine.