He was wearing a lot of clothes to _________ himself from the cold.

31 _______ with the present situation, the local government could not find effective measures to reduce the risk of coal mine accidents

Didn’t you have a good time at the party?— Of course I did. As a matter of fact, I had such fun that time seemed to________so quickly. [ ]

For the sake of enough time for study and rest, students are _____ from using cellphones in our school.

“How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”