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
. The 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
