______we were worried about was ________they could manage to control the pollution.

I’ll get Bill to accompany methe piano when I sing a song at the concert style=”width:25.0%;padding:0cm 0cm 0cm 0cm”

You don’t go to that cinema quite often, do you?—— No, I only go there ______ because it’s too far away from my house

It is said there are ______ of people in the city of Wenzhou.

We are not ready to go into production yet, for the new switch mechanism isn’t fully ______.[ ]