Whether you can enter the high school yourself.
—Is the schoolbag beautiful?—Yes, at _____ it’s _____ the one you bought for me.
—What do you think of Project Hope?—Great! It has made important contributions _____the education.
The traffic in the city _____ be terrible, but now it has improved a lot. I think you will ____ it soon.
—How long has Kangkang _____from home?—For five days.
—I have never visited the Great Wall.—_____.