Look! They ______ about the solution to the network problems again．（ ）
| A． |
argue |
B． |
are arguing |
| C． |
argued |
D． |
were arguing |
David's responses were ______ than anyone else's and he won the competition．（ ）
| A． |
quick |
B． |
quicker |
| C． |
quickest |
D． |
the quickest |
_______ beautifully little Simon dances in front of the camera!（ ）
| A． |
What |
B． |
What a |
C． |
How |
D． |
How a |
I couldn't get much ______ of the exhibition of clean﹣energy products from the website．（ ）
| A． |
news |
B． |
photos |
| C． |
posters |
D． |
advertisements |
We communicate ____ each other in many ways，such as by e﹣mail or by phone．（ ）
| A． |
on |
B． |
through |
C． |
in |
D． |
with |