She concentrated her energies __________ her test.
| A．on |
| B．to |
| C．with |
| D．of |
The chairman thought necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it | C．this | D．him |
No progress was made in the trade talk as neither side would accept the conditions of .
| A．others | B．the other | C．either | D．another |
Ten years ago the population of our village was_____that of theirs.
| A．as twice large as | B．twice as large as |
| C．twice as much as | D．as twice much as |
The CDs are on sale！Buy one and you get ______ completely free.
| A．other | B．others | C．one | D．ones |
Mr. Baker thinks his own inconvenience and _________ of his fellow colleagues are the only thing that the government should deal with.
| A．whoever | B．someone | C．that | D．any |