16) Mary didn’t go to school yesterday because she was sick.>> Because of
17) She went to bed early because she felt tired. >>Because of
18) Margaret stayed at home because her mother was sick.>> Because of
19) I couldn’t do the test because it was difficult.>> Because of
20) I couldn’t read the letter because it was dark.>> Because of
21) I can’t study because it is noisy.>> Because of
22) The train come late because it was foggy.>> Because of
23) The train was late because the fog was thick.>> Because of
24) I can’t sleep because the weather is hot.>> Because of
25) All the teacher love him because his conduct is good.>> Because of
26) Because there was a traffic accident, I went to school late.>> Because of
27) Because there is a shortage of meet, we had to live on beans.>> Because of
28) Because there was a lack of water, many trees died rapidly.>> Because of
29) She walked slowly because her leg was injured.>> Because of
30) Because it was sunny, we decided to go camping.>> Because of
