1 . It is widely ______ that parents are the best teachers for their children.

A．appreciated	B．attracted
C．assumed	D．acknowledged

2 . In order to get convincing evidence, researchers have ________the genes of more than 200 breast cancer patients in Chicago.

A．analysed

B．associated

C．attained

D．acknowledged

3 . One of the main concerns of the World Animal Day is to ______ the various important life-sustaining roles animals play in our life.

A．anticipate

B．acknowledge

C．arrest

D．announce

4 . The Chinese saying toutong yitou, jiaotong yijiao, or “treating only the head for headache and only the feet for a foot sore,” is a criticism of any approach that fails to ________ the root cause of a problem and is thus fundamentally unable to solve it.

A．acknowledge

B．identify

C．recognize

D．search

5 . 请选择合适词，并用其恰当形式填空，每个词仅用一次，所给词中有两个多余的词。

identity, maintain, perform, admit, exhibit, acknowledge, press assist sb. with, catch one’s eye, experiment with, result in, do sb. a favor

1. Jack ________ that it was his fault(过错)to miss the deadline.
2. Instead of going to supermarkets, today we just need to ________ a button and then the orders will arrive the next day.
3. Nowadays many students ________ their friendships through online communication.
4. According to the research, too much screen time will ________ shortsightedness.
5. Avatars are digital ________ that you use to communicate and express yourself on the Internet.
6. The beautiful book ________ as soon as I entered the book store.
7. I’m fed up with ________ repetitive tasks and I wish I could do something more creative.
8. Our company ________ new energy cars in the past 15 years and hopefully, we can make a contribution to a more eco-friendly economy.
9. The audience were amazed by the sportsmanship which ________ by all the athletes.
10. More employers will be needed to ________ us ________ the development of new equipment.

6 . As it says in China’s famous novel The Romance of the Three Kingdoms, “It is a truth universally ______ that everything long ______ will fall apart and everything long ______ will come back together again.”

A．acknowledging; uniting; dividing

B．acknowledged; being united; being divided

C．being acknowledged; having been united; having been divided

D．acknowledged; united; divided