Aizhai Great Bridge ___________ in March 2012 and it is one of the highest bridges in Asia.
A.was built B.built C.is built
Please ___________ the rubbish into different litter bins according to the signs.
A.puts B.put C.to put
The world is changing with every minute, and China___________ with every minute，too.
A.is changing B.had changed C.changed
— ___________ does your mother go to the supermarket?
— Once a week.
A.How often B.How long C.How far
Annie took a lot of___________ with her mobile phone when she visited the Great Wall last summer holiday.
A.photo B.photoes C.photos
Look! The girl___________ red is helping an old man cross the road.
A.of B.on C.in
