Dick is the only one of the teachers who ____ Chinese. He is one of Mary’s friends who _____ been to China.
You should consider carefully the car you want to buy is worth the money.
When in trouble, many teenagers go to their friends for advice.
I had wanted to visit the gallery before I Florence, but it' s closed on Sundays.
— It has been so foggy recently. — Cheer up! The fog to clear up from tomorrow.
With a school built in the village, the children needn't climb the mountain for study.