Thank you for ________ me to your birthday party．

A．invitation

B．invite

C．inviting

D．being invite

People all over the world should communicate with ________．

A．something

B．someone

C．one another

D．another one

Flowers can add beauty ________ our cities．

A．up

B．up to

C．with

D．to

The animals are ________．We should help them．

A．in dangerous

B．out of danger

C．in danger

D．at danger

Look, dinner is ready．It ________ delicious．

A．smell

B．is smelling

C．smells

D．is smell

Maybe I have heard of the story before, but I can ________ remember it．

A．really

B．mostly

C．hardly

D．easily

选择并抄写单词

Giant pandas are one of the oldest ________(living, alive)things on earth．

选择并抄写单词

In the last class meeting, we discussed the project about noise ________(pollute, pollution)．

选择并抄写单词

We can change the color of the water by putting a ________(chemistry, chemical)．

选择并抄写单词

Wind, electricity and fire are all ________(nature, natural)elements．