____ you ask many different questions will you acquire all the information you need to know．
| A．If only | B．As far as | C．So long as | D．Only if |
. It was the fact _______his father was ill in hospital_________ worried him and kept him awake for a whole night .
| A．which ; that | B．which ; which | C．that ; which | D．that ; that |
. Th
e Town Hall_________in the 1800’s was the most distinguished building at that time .
A．to be completed |
B．having been completed |
| C．completed | D．being completed |
The Postal Service announced Tuesday it had made a significant _______in getting machinces to read handwriting .
| A．progress | B．break through | C．impression | D．difference |
You can be sure of _____ you have at present ; you cannot be sure of something_______you might get in the future .
| A．that ; that | B．what ; / | C．which ; that | D．/ ; that |
.— Mom , what did your doctor say ?
— He advised me to live_______ the air is fresher .
| A．the palce where | B．in which | C．in where | D．where |