______ made him unhappiest of all was ______ he had nowhere to unburden himself.
| A．What; what | B．What; that | C．That; what | D．That; because |
It showed me that the way of education in Canada is quite different from __________ in China.
| A．it | B．one | C．that | D．this |
__________ has been announced, we shall have our final exam next month.
| A．As | B．It | C．That | D．What |
I haven't my photograph album _____________, but I'll show it to you later．
| A．at hand | B．at work | C．at ease | D．at length |
My headache _________ me．I thought it was going away, but it's getting worse and worse．
| A．killed | B．kills | C．is killing | D．was killing |
What I need is ___________ book that contains _____ ABC of English grammar．
| A．a; the | B．the; 不填 | C．the; an | D．a; 不填 |