.The teacher demanded that our examination paper _____handed in at once . A be B must be C would be D had to be
twice
They _______ me 300 yuan for the bike but I brought down the price to 250 yuan.
As regards health, I have nothing _____ to say since I have ________ of illness.
I have bought two ball-pens, _______ writes well.
Your plan means ________ more money,so I mean _______ it .