It is sunny; ...................., it is very cold.

Henry studied very hard; ..............., he passed the test with high marks.

The students didn't prepare for the test, ............. did they know how important the test was.

The doctors thought that he was seriously ill. ........................, they decided to operate on the patient.

We needed some food for the next week. ........................, we went to the supermarket.

Alan invested a lot of money in the business. .................... , the business was not successful at all.

We should leave after the rush hour; ......................., we will get stuck in traffic for hours.

Neil practises every day; ......................., he is still bad at driving.

Walking can make people become more aware of their surroundings, _____ the cleanliness of the environment, and the friendliness of the neighborhood.