Peoplehavealwaysbeencurious_____howlivingthingsontheearthexactlybegan.[ ]

I wonder how he _______ that to the teacher

___________do you go to the shopping center—About once a month. I’m busy with my studies.

_______ there yesterday, I could have asked him not to do so．

Have you got any idea for the summer vacation? —I don’t mind where we gothere is sun, sea and beach