In order to ________ a good knowledge of English, he gave up his job and went to study in an English school.

Would you have helped her had it been possible?—Yes, but I __________ busy with my work

Do you know _______ he turned off the lights or not when he left the classroom?—Sorry. I don’t know.[ ]

Why is Mike so angry—I asked a(n) _____ question. I didn’t mean to hurt his feelings.

The school isn’t far ________ my home. It’s just ten minutes’ walk.