——I’m sorry that I didn’t work out this problem. ——It’s ___________our ability. I didn’t work it out, too.
I think whoever makes contributions to the company than the others should get income.
Our teacher is always busy preparing lessons until 11 o’clock at night, we students have gone to sleep.
The news is spreading around the airport is a heavy storm is coming.
He is taller than he .
If you stand here, you’ll get a better of the river.