My father is very busy．He has spare time．（ ）
| A． |
always |
B． |
usually |
C． |
seldom |
D． |
sometimes |
his right hand was hurt， he wrote slowly．（ ）
| A． |
Because； so |
B． |
Because；/ |
| C． |
Although； but |
D． |
Although； / |
I can't find my English book． Have you seen ？
Oh， sorry． I have taken by mistake．（ ）
| A． |
them； my |
B． |
them； your |
C． |
it； mine |
D． |
it； yours |
Of all the subjects，chemistry seems to be for me．（ ）
| A． |
difficult |
B． |
too difficult |
| C． |
more difficult |
D． |
the most difficult |
The picture of the Snowflake Boy has become very popular recently．
Yeah， it receives Internet hits a day．（ ）
| A． |
thousands of |
B． |
thousands |
| C． |
hundred |
D． |
hundreds |
Our classes are over noon and then we go to have a rest 1：00 in the afternoon．（ ）
| A． |
at； at |
B． |
in； in |
C． |
in； at |
D． |
at； in |