__________ she finds out that you've lost her book?
| A．What about | B．How about | C．How if | D．What if |
It is the teacher ____ taught me when I was a child ____ I am going to visit.
| A．that; which | B．who; which | C．who; that | D．whom; that |
She won’t leave the TV set, ____ her husband is waiting for his supper.
| A．as though | B．even though | C．whether | D．whenever |
— ____ makes her different from the other students?
— Honesty, I think.
| A．How is it that | B．How is that | C．What is it that | D．What it is that |
He went home for lunch ____ the clock struck twelve.
| A．while | B．immediately | C．right away | D．at once |
19. Is this the very factory ____ he visited last month?
| A．which | B．that | C．where | D．in which |