ittle girl is walking along the beach, happy and joyful, _____bending down to pick up a beautiful seashell.

Prices of daily goods________through a computer can be lower than store prices

Don’t be a phubber(低头族). Technology helps us a lot, we shouldn’t allow it to control our lives.-We should take more activities outside to keep healthy.

Many people think it is a piece of good news that families in China may have a second child if ________parents an only child.

下列各句中，没有语病的一句是