This is one of the most interesting _______ I have _______ seen.
A. aircrafts; never B. aircrafts; often
C. aircrafts; ever D. aircraft ; over
I couldn't believe that such an expensive car was ______ and crashed into another car.
A. without controlling B. out of control
C. under the control D. with control
——Did you find your English dictionary yesterday?
——No, I didn’t find ________, but I’ve borrowed ______ from the school library.
A. it; it B. it; one C. one; it D. one; one
.— What rules do I have to keep while working here?
—________ , you must always wear your uniform.
A. By the way B. From then on
C. Believe it or not D. First of all
The robot needs ________ once a month. And we will check it for you for free.
A. to check B. be checked C. checking D. Check
The robot caught a virus. ____________, it didn’t work.
A. In order B. As a result
C. In order to D. However
