Much to his surprise，he invited only twenty friends to the dinner，but____ came．
| A．twice as many as | B．as many as twice | C．twice as many | D．twice more than |
People who can’t ___________ between colors are said to be colorblind .
| A．separate | B．differ | C．distinguish | D．divide |
. 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 |