嗯,是的,几道Haven"t I told you already that you ___havefifteen do

嗯,是的,几道
Haven"t I told you already that you ___havefifteen dollars if you have fixed my cell phone?A.would B.should C.could D.shall
I know Linda will arrive next Wednesday.I want to know the ___time of her flight"s arrival.A.specific B.paticular C.special D.unique
_____that no one was ever prepare for it .
A.So suddenly the disaster came
B.So suddenly did the disaster come
C.So did the disaster come suddenly
D.Did the disaster come so suddenly
Calculations,which are astronomically accurate,have been made____with the use of computers.A.possible B.it possible C.possibly D.it to be possible