Do you know ?
We can try to produce less waste, reuse or recycle things.( )
A.why can we live a green life
B.how can we live a green life
C.why we can live a green life
D.how we can live a green life
Some volunteers are going to_____the central park. Let's join them.( )
put up
clean up
look up
give up
Train tickets_____online. It is convenient.( )
sold
were sold
are sold
have sold
Helen is the_____person in her family. Her two elder sisters are both married.( )
older
oldest
younger
youngest
In a restaurant, people usually choose food and drink from the_____.( )
book
menu
newspaper
magazine
_____you smell something burning? Go and see what's happening.( )
Can
May
Must
Need