I .............. a strange noise in the backyard.
noticed
appeared
performed
wondered
People with color- .............problems face many difficulties in everyday life
vision
difference
symbol
feature
The library had................ books on various subjects.
suffer
temporary
numerous
recognize
A beautiful rainbow started to ................. in the sky.
press
publish
insist
appear
Throat infections are quite ................ in children
precious
similar
random
common
There's no ................. between the two houses.They are the same.
similarity
difference
mistake
diverse
Who created the Ishihara test?
A Japanese eye doctor
An Australian artist
A Chinese surgeon
A French scientist
People with color-vision problems often cannot see...........and ..........clearly.
red - green
pink - blue
black - white
blue - yellow
The Ishihara test includes...............made up of dots.
circles
lines
mistakes
visions
Shinobu Ishihara published the Ishihara test in ......................
1970
1809
1917
1923
In the Ishihara test,on each page there is a circle made up of...................dots.
common
particular
numerous
incorrect
In the Ishihara test the dots appear in ..............colors and sizes.
similar
wrong
same
various
Seeing red and green ..............is the most common color-vision problem.
correctly
differently
incorrectly
variously
The Ishihara test was...........by a Japanese eye doctor.
appeared
noticed
pressed
created
There is a..................for the arrangement of the dots in Ishihara test.
technique
problem
reason
vision
The Ishihara test helps people to...........if they have color-vision problems.
create
find out
locate
appear
