A． waitingB． stoppingC． standingD． hearing

It’s no use（)here, let’s go home.A、 waitingB、 to waitC、 wait

A．killingB．stoppingC．feelingD．treating

You may look at a group of cows ____ under the trees.A: stoodB: standsC: standingD: to

（)! That fire is dangerous.A. To stopB. StoppingC. Stop

Sorry to have kept you （)for a long time.A.waitingB.waitC.waitedD.to wait

【C4】A．waitingB．lookingC．expectingD．seeing