Our teacher often tells us _______ our owncloth bags when shopping.

Shanghai has hosted2010world Expo The world Expo has longhistory but it has never been held in Asia

We have so many kinds of guitars for you ________.

Seeing the happy________of childrenplaying in the park，I’m full of joy and confidence in the future of our country.

inch ________, compared with the 4-inch screen of the current Iphone 5s, is being prepared for mass production and may be available around this September.