Who called just now—I don’t know because I didn’t______ his voice.

Nobody knew who was the first ________ at school thatmorning when the window was broken.

The Greens often go to the beach _______ fine afternoons.

It sounds like something is wrong with the car’s engine , we’d better take it to the garage immediately

The soldier raised his gun and calmly ______ it at the enemy commander,fired.[ ]