When the teacher praised him for working out the math problem, Jack looked __________ about at his classmates.
.Every possible means _______to prevent the air pollution, but the sky is still not clear.
.______ surprised the family most was ________the girl played basketball very well.
.I have to see the doctor because I________a lot lately.
.The cost of renting a house in central Baoji is higher than________in any other area of the city.[来
— What a fine day! Shall we go shopping? — ________.But we need to be home before five o’clock for the football match.