Not until I began to work ____ realize how much time I had wasted.
His long service with the education was with a thirty-year teaching qualification.
—How did your mathematics exam go?—I thought I ,but in fact I fell behind in the class.
The new law to punish the drunk driver has come into since it passed.
一Make sure you read the directions before using the software.— .
You should be careful of such a person flatters you in your presence and speaks ill of you in behind.