B-WORD PATTERNS Gap filling :fill in the blank with a suitable preposition 1. She used to lie awake at night worryning about how...... pay the billls 2.The country is heavily dependent .......oil and gas imports 3.The metal has relatively low toxicity...... humans 4.A chils's development is dependent ... many factors 5.An important feature .... van Gogh's painting is their bright colours 6.Chess requires a very high level...... concentration 7. There has been an increase in the use ..... migrant wokers in recent years (Giúp em với ạ em cám ơn)

B - WORD PATTERNS: 
Gap filling: Fill in the blank with a suitable preposition:
1. She used to lie awake at night worryning about how ..to.... pay the billls
2.The country is heavily dependent ...on..... oil and gas imports.
3.The metal has relatively low toxicity ...on... humans.
4.A chils's development is dependent ..on.... many factors.
5.An important feature ..of..... van Gogh's painting is their bright colours.
6.Chess requires a very high level ..in.... concentration.
7. There has been an increase in the use .of.... migrant wokers in recent years.

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