tổng ôn unit 3 9 i learn smart world

This is a kind of _____

• sensor

• fruitelevator

• furniture

• solar panel

a computer program you can talk to and give instructions to do something is ?

• voice assistant

• elevator

• monitor

• a system

This is an illustration of two s____ ______.

In the picture, there are many home _______

• device

• voice assistant

• appliances

• machine

A machine for carrying people up and down in a building is called ?

My house has _______ on the roof, they _____ electricity for us to use

• monitor - generate

• generate - solar panels

• voice assistant - generate

• solar panels - generate

This is the solar _____?

• power

• system

• panel

• battery

In the past, lights didn't have _______. Nowadays, many lights have ______. They turn on when there's a person moving in the room.

• solar

• sensors

• elevators

• tubs

 Find the mistake in this sentence -

1. She rang James, which was a really good friend as well as the family doctor. 

• rang

• which

• really

• welll

1.  Snow leopards _____ live in the mountains of the Himalayas have almost disappeared. 

• what

• which

• whom

• whose