3. What can be concluded from the news?
A. The Internet has made it easy to discover plagiarism.
B. No more students will run the risk of plagiarism.
C. Teachers and students will play a cat-and-rat game.
D. The online services for identifying plagiarism is not so practical.
查看答案
选择恰当的动词形式，并补全句子The tiger ___very strong.
A. is
B. are
C. will be
D. are not
We ____ busy all the time.
A. are
B. is
C. am
D. am not
Shanghai ____ in the east of China.
A. lies
B. lie
C. lied
D. tell lies
He ____in a French’s college.
A. works
B. is
C. are
D. should be
微信支付 
支付宝支付