We can't work out the physics problem. Can you tell us ?
| A．how to do | B．what to do it |
| C．how to do it | D．what should to do |
----Julie, _______ have you been learning English?
¬---- Since six years ago.
| A．when | B．how far | C．how soon | D．how long |
I ________ that girl the first time I saw her.
| A．fell in love | B．fell in love with |
| C．fall in love with | D．fall in love |
Shanghai is one of _______ in the world .
| A．more big city | B．the biggest city |
| C．the biggest cities | D．the most big city |
There are _______ students in this school.
| A．two thousand of | B．two thousands |
| C．thousand of | D．thousands of |
How long have you _______ the bike?
| A．kept | B．bought | C．lent | D．borrowed |