20. The extreme hot weather __ to continue for several more days before it - to cool down gradually. A) has been forecast starts B) will be forecast / is starting C) is forecast I will start D) was forecast/had started E) forecasts/had started

The correct answer is A) has been forecast starts.<br /><br />The sentence is discussing the extreme hot weather that is expected to continue for several more days before it starts to cool down gradually. The correct tense to use in this context is the present perfect tense "has been forecast" to indicate that the forecast has already been made. The present tense "starts" is used to indicate the future event of the weather starting to cool down.