I don’t like any humor in serious speech because I can’t think of any circumstance _______ this would be beneficial or useful.
| A．where | B．which | C．whether | D．as |
__________ Einsteins could not pay for __________ advanced education hat young Albert needed.
| A．The; the | B．A; a | C．An; the | D．The; an |
He insisted that all the work __________ within a week.
| A．must be finished | B．be finished |
| C．should finish | D．would be finished |
I always take something to read when I go to the doctor's __________ I have to wait.
| A．in case | B．so that | C．in order | D．as if |
—Do you mind me smoking here? —No, __________.
| A．a bit | B．not a bit | C．a little | D．not a little |
—Will you go to Mary's birthday party?
—No, __________ invited, I can't go to it. I'll be too busy then.
| A．if | B．unless | C．even if | D．when |