What worried the child most was ______ to visit his mother in the hospital.
A. his not allowing B. his not being allowed
C his being not allowed D. having not being allowed
— ____ 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 |
The first thing ____ you should do is to learn all the new words by heart.
| A．what | B．that | C．which | D．who |
The students are talking about the strange people and stories ____ they met in the adventure.
| A．that | B．which | C．what | D．whom |