Help for English
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Muže mě někdo prosím odkázat na nějakej článek nebo vysvětlil ty 4 vazby?
If you (should) happen to see Davina, ask her whether she would look after the cats this weekend.
If you should should see Davina, ask her whether she would look after the cats this weekend
If you happened to see someone drop litter in the street, what would you do ?
Do you thing it would reduce pollution if the government were to introduce a new tax on petrol?
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