We had to wait in line for 30 minutes because only a few clients were allowed in______.A．a

Studies show that otherwise rational people act irrationally when forced to stand in line or wait in crowds, even becoming violent.（英译中)

no modern telecommunications, we would have to wait for weeks to get news from around the world.A．We

Ben: Mommy, when will we have dinner？ I’m starving.Mother: _______.We have to wait for

She had waited at another museum for days and had spent all her money _____ to find Sidn

In the line, "I had to drop off Bernie at rehearsal.", "drop off"

Workers had been waiting for favorable weather conditions to undertake the operation.