It is difficult for him to find a job in a big city => HE HAS DIFFICULTY

Nga has a headache because she studied to much => Nga studies

Tom works hard because he wants to have a holiday TOMORROW => Tom wants

Ronaldo has a lot of fans because hes a good soccer player => ronaldo plays soccer 2) nobody has cleaned this room, so it is very dirty => Because

The last time Jane did yoga wast last weeek => Jane hasnt 2) She finds it difficult to persuade her mom to travel around Vietnam => She has

Fill in the blank with the correct tense / form 1) After.... At his watch , he hurried to the station (look) 2the conservationists went on ....... Up the beach although it started to rain ( clean)

Hoà tan 13gam Zn vào 300ml dung dịch H2SO4 thu được dung dịch A và V lít khí H2 ở đktc , tính V và nồng độ mol/lít của dunh dịch A , biết thể tích thay đổi không đáng kể