I listened to Professor Chen-Ning Franklin Yang’s lecture about his study and physics, but I failed to get its key ______ .
| A．words | B．notes |
| C．messages | D．points |
-- Mary and Tony want to go to the party?
--No, they don't.
| A．Do | B．Does | C．Is | D．Are |
There are twenty-eight days in
| A．January | B．February | C．March | D．June |
The tenth month of a year is
| A．August | B．October | C．September | D．July |
Tony is twelve old, but his sister is only one old.
| A．year; year | B．years; years | C．years; year | D．year; years |
Many children go to school at the of seven.
| A．date | B．year | C．number | D．age |