He always looks ________. Now he is looking ________at his new drawing.
What’s the low-carbon(碳) life style like?—-Save energy, produce carbon.
.I must make full use of the time ___left to me and do as much as I can for the people.
Would your parents like to go to Taiwan for a vacation with you? —They’d love to, but ______of them has enough time .
It takes us about an hour ________ our homework every day.