The patient was warned ________ oily food after the operation.
_____ from the hill, the park seems beautiful. _____ from the hill, you’ll find the park beautiful.
_____ he has done it is surprising. _____ he has done is surprising.
Here is such a difficult text _____ none of us can understand. Here is such a difficult text _____ none of us can understand it.
—Which of these two dictionaries will you buy? —I'll buy _____ ,for the different uses.
I didn't know _____ you were getting on well with your work.