Aftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
A、droppedAftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
Idon'tknowhowwecanmake________onthetimetableforanymorecourses.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.
SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
