Last year Huai'an Flyover（高架）_________． Now it brings much convenience to people．（ ）
A．finishedB．finishes
C．is finishingD．was finished
Hawking's book A Brief History of Time came after years' hard work．（ ）
| A． |
out |
B． |
on |
C． |
down |
D． |
up |
Today， with the Internet， people can communicate than ever before．（ ）
| A． |
easily |
B． |
more easily |
| C． |
most easily |
D． |
the most easily |
We on the playground when it began to rain．（ ）
| A． |
ran |
B． |
were running |
| C． |
run |
D． |
have run |
Look at the sig． You take photos here．（ ）
| A． |
couldn't |
B． |
needn't |
C． |
mustn't |
D． |
won't |
In China， we always use red paper for Hongbao red means luck．（ ）
| A． |
until |
B． |
if |
C． |
although |
D． |
because |