Tom became interested in books at a very young age． He read every book he could find and bought books of all kinds． Today Tom has a big collection of books． His favourite books are mystery novels and books about detective stories．
The story mainly tells us ．（ ）
A．why Tom does the reading
B．how Tom learned to read
C．how much Tom likes to read
D．what Tom's favourite books are
What tools ______to make paper cutting？
Scissors．（ ）
| A． |
are used |
B． |
used |
C． |
will use |
D． |
use |
These light bulbs look the same，but their ______ on the environment are different．（ ）
| A． |
solutions |
B． |
methods |
C． |
effects |
D． |
secrets |
Look on the bright side of life，and imagine that you ______ a happy and successful future．（ ）
| A． |
had |
B． |
will have |
C． |
have |
D． |
have had |
______it is often cold in the mountains，you need to wear warm clothes．（ ）
| A． |
Though |
B． |
Unless |
C． |
As |
D． |
Until |
______ 2000，this company has seen much new development．It has become one of the biggest companies in the country．（ ）
| A． |
For |
B． |
In |
C． |
By |
D． |
Since |