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