Linda failed in the driving test.______, she doesn’t lose heart.

It is _____ colder than yesterday; put on more clothes or you will catch a cold. 

—— How did you find your visit to the museum? —— I thoroughly enjoyed it. It was＿＿＿＿interesting than I had expected. 

At first the institute refused to purchase(购买)  the  experiment  instrument,  but  this decision was ______ changed.

We didn’t know you were in trouble at that time; _______ we would have given you a hand.