It is imperative that students _____ their term papers on time.
A
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Heresented_____towait.Heexpectedtheminister_____himatonce.
Evenifhisletter____tomorrow,it____toolatetodoanything.
_____ifIhadarrivedyesterdaywithoutlettingyouknowbeforehand.
.IfyouhavereallybeenstudyingEnglishforsolong,it’sabouttimeyou_____abletowritelettersinEnglish.