【推荐1】As an expert, he __________ in the research of healthy lifestyle in recent years.

A．is buried	B．was burying
C．has been buried	D．had been burying

【推荐2】With the wide use of e-business, the way of shopping we were used to        a lot.

A．change	B．changing
C．changed	D．has changed

【推荐3】- -Did you watch the news about the success story of a farmer in Longhu last night?
Yes. By using an e-commerce platform, his fruit business ____ nationwide.

A．is expanding

B．has expanded

C．would expand

D．was expanding

【推荐1】The teacher as well as his students _______ just arrived at the airport.

A．is

B．has

C．are

D．have

【推荐2】Delete the short message at once! Many a man ________by such tricks so far.

A．are cheated

B．is cheated

C．has been cheated

D．have been cheated

【推荐3】We were asked to move out of the building because it ________ now.

A．has been decorated	B．decorating
C．is being decorated	D．is decorated