It________asashocktorealizethatIwasnotaloneintheroom.
A、cameWhen I came through the customs at the airport, I had to pay ________ on a clock I had bought.
I won't ________ those children making a noise in my house!
Onlya(n)________fewwereinvitedtothedancingparty.
Theassociationis________toraisingfundstohelptheblind.
It is useful to science _______ the earth as an object in space.