Use an adjective or adverb to replace the underlined

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Practice 1 Use an adjective or adverb to replace the underlined
dramatic/ally considerable/ly- significant/ly- slight/ly-gradual/ly
1. Vietnamese people's lives have been improved enough to make a difference.
2. There has been a little by little increase in people's income over the last ten years.
3. Compared to 2 years ago there have been minor differences in the country's policies.
4. The traffic system in Hanoi has been upgraded suddenly and to a great degree.
5. There have been quite large changes in the way people work.