—Three-D printing technology could be used to build a house in less than 24 hours. -- It amazing. It’s my first time to get to know the news.
It’s important for us students to pay attention to __________ the teacher in class.
Tim was _______ in the accident.
Everyday my mother made delicious food _______ tired she is.
You ________ drive after drinking. It is dangerous.
We have to ________ early to get there on time because of the heavy traffic.