I have to go at once.

－－－－ I’m going to Hainan for my holiday.－－－－ ________________________A、Not at allB、Have

This is a piece of very important news. You must have it ____ to your country at once

I have to go now. I have to pick _____my son from school.A.inB.withC.up

“Have you gone to see the doctor？” “No, but______.”A、I goB、I’m going to seeC、I go to see

You’d better（)to hospital at once.A. goB. toC. going

I was unable to pay my entire electricity bill at once, so I sent half the amountA．on acco