DRILL : Complete these sentences with : can, must, should, ought:
1 You ................ wash your hands before meals
2 Nam is very good at Math. He................do all Math problems
3 It's too late. I............ go now
4 She gets bad marks at chemistry. She ............. to study harder
5 The traffic lights are red. You ...............stop
DRILL : Complete these sentences with : can, must, should, ought:
1 You .........must ... wash your hands before meals
2 Nam is very good at Math. He.......can...do all Math problems
3 It's too late. I....should..... go now
4 She gets bad marks at chemistry. She ......ought... to study harder
5 The traffic lights are red. You .......must...stop