.
In April, 2009, President Hu inspected the warships in Qingdao, ______ the 60th anniversary of the founding of the PLA Navy. 
| A．marking | B．marked | C．having marked | D．being marked |
About_________of the students in the class are girl students.
| A．three-fives | B．three-fifth |
| C．three-fifths | D．third-fifths |
You think your ruler is very long，but his is _________yours.
| A．twice as long as | B．three as long as |
| C．twice longer as | D．once as longer as |
—What’s the time，please?
— It’s _________.
| A．half past nine | B．half to nine |
| C．nine half | D．half nine |
The old building was founded_________ .
| A．in 1820s | B．in the 1820 |
| C．in the1820s’ | D．in the 1820s |
There are 2000 boys in this school，and _________them like playing football.
| A．five hundred | B．five hundreds |
| C．five hundreds of | D．five hundred of |