Scientists have to work hard to keep _____ with modern discoveries and developments.
| A．company | B．track | C．touch | D．pace |
The Harry Potter booksto readers of all ages.
| A．attract | B．pay attention | C．appeal | D．attach |
If our car had not ________, we would have been here on time.
| A．broken out | B．broken into | C．broken away | D．broken down |
So far, my home village has changedrecognition.
| A．from | B．beyond | C．over | D．with |
What a pity! The car ran out of sight before I couldits number.
| A．get across | B．get off | C．set aside | D．set down |
Canada is one of the safest and most welcoming countries you willvisit.
| A．even | B．never | C．ever | D．just |