The Burj Khalifa in Dubai is 828 meters high and there is no doubt it’s the tallest building in the world.
| A．that | B．what | C．whether | D．which |
What will ________ the children if their parents are out of work?
| A．happen | B．bring up |
| C．come up | D．become of |
.—We haven’t heard from Jane for a long time?
—What do you suppose ________ her?
| A．happened to | B．has become of |
| C．became to | D．was happened to |
Some of the students have already learned enough English to ________ a conversation with a native speaker.
| A．go on | B．carry on |
| C．keep on | D．hold on |
Throughout the week,the boy ________ most of the work in the manager’s office.
| A．took on | B．took off |
| C．took in | D．took over |
My cousin doesn’t know what to ________ at the university;he can’t make up his mind about his future.
| A．take on | B．take away |
| C．take up | D．take after |