Investigators agreed that passengers on the airliner ________ at the very moment of the crash．

should have died

must be dying

must have died

ought to die

How is it ________ your roommate’s request and yours are the same?

if

so

what

that

I was having ________ time that I didn’t want to leave．

such a nice

so nice

such nice a

such nice

Neither could theory do without practice, ________ without theory．

nor practice could do

nor could practice do

or could practice do

practice could do nor

When he saw Professor Smith, he ________ his hand to him．

extended

expanded

expended

exposed

The house rent is expensive．I’ve got about half the space I had at home and I’m paying ________ here．

as three times much

as much three times

much as three times

three times as much

To my great disappointment, ________ I got to the airport, the guests had left．

while

as

after

when