The highlands of northern Vietnam are home to the 1.5 m (Vietnam’s largest/ the Vietnam’s largest/ a Vietnam’s largest/ the largest Vietnam)_ minority group.

Yoga help us learn (how/ what/ when/ why) to co-ordinate breathing and movement.

Firstly, sitiing/ all day/ front/ computer/ can/ cause/ health/ problem/ such/ eyetiredness/ obesity.

The word has the same meaning with "concentrate on": (relate on/ be interested in/ impress on/ pay attention to)

Their family have moved to the city (for/ since/ in/ last) 2001.

Internet/ change/ way/ we/ communicate.

The word has the OPPOSITE meaning with "put on" : (put off/ put out/ take out/ take off)

(Because/ although/ Despite/ When) people in the countryside are not rich, they often have a peaceful and happy life.

The terraced fields of Sa Pa have entered (on/ in/ at/ off) .the Top 11 most beautiful terraces in the world according to Touropia.

Countryside is not polluted (although/ however/ therefore/ as) you can breathe there fresh air.

How much is this traditional costume? -> How much does .............?

It (has taken/ has spent/ hass waste/ has used) him so many years to collect stamps. Now his collection is very large and valuable.