Modern medicine has achieved great breakthroughs. Doctors can (a)   organs in our body easily and accurately without any risk to your life.

In the future, robots will replace doctors in performing (a)   with perfect accuracy and safety.

The automation, replacement of robots and other artificial intelligence equipment can reduce (a)   _and bring out more profit for large companies; however, what should we do with the high unemployment rate?

I wonder why women in the past didn’t feel bored with (a)   household tasks like cooking meals, washing dishes, doing the laundry, etc.

The (a)   are having a brief meeting to discuss some key points before working with the press about their new product introduction.

Some people believe that the regular (a)   of doing something can help them become more and more perfect.

Some governments are improving their security systems in order to protect their computer systems from (a)  

The new series of smart phones are recalled because of some serious security (a)   .

The air-conditioner isn’t working properly. I think there may be some (a)   , call a technician to fix it.

No one lives here, so it can maintain its (a)   of forests, air, and beauty.

(a)   this new word with me, class!

There are no classes in the life of (a)   .

Performing (a)   for the first time made me very nervous and scared.

VAT is an (a)     for Value Added Tax.

What happens if robots can have feelings and do not follow the control of humans? I feel very worried and scared  about that   (a)     .

There are two (a)   during the game.

Plants use sun’s light to (a)   their food.

I have worked as an (a)   for over ten years. I still find that it is an interesting job for me.

Always follow the (a)   ’s instructions. Don’t be careless!

In the future teaching robots can be (a)     in schools. Do you think that this is a disaster for human’s education?

Some scientists believe that robots will get   (a)   in some days because they are more and more intelligent. If you don’t believe, just wait to see.

  Some   (a)     issues are being discussed to find out as many suitable and effective measures as possible.

The teacher (a)   each of the children a different task.