—What about ________ conference you attended last week?—To tell the truth, it was too boring, you know, ________ conference like that.
“How do you deal with the disagreement between the company and the customers?” “The key ______ the problem is to meet the demand ______ by the customers.”
The boy wanted to ride his bicycle in the street, but his mother told him ______.
John wanted to ride his bike in the street but his uncle told him _____ . A. not to B. not do B. not do it D. do not to
When _____ why he walked in _____ permission, he just _____ at us and said nothing.
He did all he could _____ .