آزمون گرامر افعال کمکی (modal verbs) مناسب برای تمام مقاطع و کنکور سراسری Source: English Practice Complete the sentences with a modal verb from the box below. Sometimes more than one answer is possible. CAN’T - COULD – MIGHT - MUST - MUSTN’T – NEED – NEEDN’T - SHOULD – WILL - WOULD