20 Look ! A man is running after the train.He ( want ) .......to catch it 21She (have) .....an oval face 22 you must (go) ......to school on time 23 Look!it....We are goingto have a white christmas .( snow) 24 Bob ......the news on TV every morning (watch) 25 He mustn't .......(take) a waterproof coat .It's sunny 26 students shouldn't (coppy) ....their classmates' work 27 Linh( not/go.....to school on Saturday 28 We shouldn 't (stay ) ......up late 29 What time ....Nga (have) ....breakfast every day? 30 look !The dog(swim).....in the river 31 they often(visit)......their parents in the holidays 32 WE should(study).....hard 33 my mother is in the kitchen .She ......lunch now( cook) 34 you shouldn't .....(eat) lots of sweets 35 they (not go) ....to school on Sundays 36 Now my mother ( watch ) ......TV in the living room 37 she (listen)......to music every day 38 he must (do) ..... his homework