One of the most important questions they had to consider was__________ of public health
—Would you mind my coming over and having a look at your new garden? My little son's curious about those roses you grow.—________.You're welcome.
Mr. Black________ Shanghai in a few days. Do you know when the earliest plane ________on Sunday?
Rather than ________ on a crowded bus,he always prefers ________ a bicycle.
Like some of my classmates,I cannot live up to my teachers' expectations;________,I let them down.
We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.