[ Modal Verb ]
I was going to write my essay about the British nuclear tests in the Australian Desert, but I ________ the topic when I ________ much information about them.
A. have changed / wasn’t able to find
B. had to change / couldn’t find
C. must change / haven’t found
D. might have changed / don’t find

Random Topics:
Modals of PredictionThird ConditionalGrammar ModalsFirst & Second ConditionalPresent Perfect ContinuousAdjective ClausePresent / Future / Present Progressive / non Action VerbsInversions and SubjunctivePrepositions of Place and TimeConditional 0Other quiz:
Tenses › ViewWhich is NOT the future?
A. next summer
B. yesterday
C. tomorrow
D. in 5 years
Adjective Clause › View
A rainbow, …….. has beautiful stripes, appears in the sky after the rain.
A. Who
B. When
C. Why
D. Where
E. Which