–You’re not worried about your English, are you? --No, certainly not. Not Chinese, not math and _____ English.
I _______to go shopping that Saturday, but the bad weather made me change my mind.
---______ the farmers discovered the entrance to the secret cave in the valley? --- Totally by chance.
One more month, _______ the grapes in the yard will be ripe.
_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
When _______ about their opinion of the effect of modern equipment on their performance of tasks, many young people gave a positive response.