1, the new camera didn't work.........minh took it.............to the shop
a,so/back b,because/to c,and/from d,since/out
2,we can not swim in this part of the river.........................the water is highly polluted
a,because b,moreover c,but d,so
3,i'm tired .......................i stayed up late watching tv
a,since b,and c,when d,so
4,she wants to go home .........................she feels sick
a,if b,because c,until d,because of
5, there will be big floods every year.........................you cut down the trees
a,as b,since c,if d,so
6,baths use twice as much water as showers....................i suggest taking shower
a,because b,however c,besides d,so
7,i'd love to play volleyball......................i have to complete an assignment
a,however b,and c,because d,but
8,lan failed her english......................she has to do the test a gain
a,therefore b,however c,because d,but
9,minh got wet...................he forgot his raincoat
a,so b, because c,and d, there fore
10,we should buy a ladder.................we need to fix the roof .because there must be strong wind blowing
a, in addition b,in case c,therefore d,so
11,i'll bring a raincoat..............it rains
a,so b,in case c,but d,since
12,my father has to go to work........................it is raining hard
a,because b,but c,though d, so
