complete the conditional sentences(type 1 ) by putting the verbs in brackets in correct tense.
1.If you (send ) this letter now , she (receive ) will receive it tomorrow
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2. Unless he (stop ) working so hard ,he (ruin )his health
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3. Simon (go) to london next week if he (get ) a cheap flight.
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4. If her boyfriend (not phone ) today , she (leave ) him
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