Some people are bad at recalling names and faces, so it's possible that they have a condition called face blindness, ______ people suddenly have trouble recognizing family members, friends or even themselves．

She was so angry and spoke so fast that none of us understood ______ he said meant．

The girl wearing a pair of dark glasses comes from a city in South China, ______ is evident from her accent．

I don’t believe that _____little children can finish so _____work in_____short time .

Bicycling is good exercise; ____, it does not pollute the air.

It’s raining heavily. _________, we have to stay at home.

In the good care of the nurses, the boy is_____ recovering from his heart operation.

He was the last man I wanted to meet, but I      managed to smile at him.

When Helen saw her tutor nod _______ to her, she calmed down and went on with her performance．

It is very ______ that she will ring me tonight.