[ Grammar ]
What part of speech is the word ‘on’ in the sentence ‘The book is on the shelf’?
A. Preposition
B. Verb
C. Adjective
D. Noun

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Perfect Tenses › ViewBy this time next year, I —- (finish) the course and I —- (start) to speak perfect English.
A. have finished – will have started
B. had finished – will have started
C. will have finished – will have started
Zero Conditional › View
If children (not/eat)________ well, They (not/be)________healthy.
A. Don’t eat – Don’t be
B. Don’t eat – Aren’t
C. Doesn’t eat – Isn’t
D. Didn’t eat – Won’t be