_______ can I keep the books？--- Two weeks.
| A．How long | B．How often | C．How far | D．How soon |
--Whose Iphone5 is this？ --It’s not _______. I think It’s _________.
| A．mine; her | B．mine; hers |
| C．my; her | D．my; hers |
Nanjing is one of _______ in China.
| A．beautiful city | B．more beautiful city |
| C．the most beautiful city | D．the most beautiful cities |
We are sure one day the air in Beijing will be much ______ than today.
| A．clean | B．cleaner | C．cleanest | D．the cleanest |
We arrived _____ Shanghai______ the morning of July 2nd.
| A．at, in | B．at, on | C．in, in | D．in, on |