It is said that the library has 20 million books________.
| A．at all |
| B．in all |
| C．above all |
| D．after all |
Nowadays with the development of science, more and more new technology to the fields of IT.
| A．has introduced | B．was introduced | C．will introduce | D．is being introduced |
From the school name on the package, we guessed that it might belong to a student of our school.
| A．to mark | B．marking | C．marked | D．having been marked |
studying abroad can be hard, it can broaden your understanding of the word.
| A．If | B．While | C．Because | D．Since |
The problem wasn’t hard. The little girl worked it out quickly.
| A．that | B．much | C．enough | D．a little |
Jane accidentally where she had hidden the birthday present for her mother.
| A．turned out | B．let out | C．came out | D．took out |