1 . A report on food safety in Beijing _______ on January 15th,2018 and it has received positive reviews.

A．published

B．was published

C．has published

D．has been published

2 . The Palace Museum has put on many attractions since it ___________ in 2017.

A．had been rebuilt

B．was rebuilt

C．had rebuilt

D．rebuilt

3 . Chinese kites in ancient times ________ in the shape of birds.

A．design	B．had designed
C．were designed	D．have been designed

4 . Kate ________ by the teacher for she had made an excellent contribution to group discussion.

A．praised	B．was praised
C．has praised	D．has been praised

5 . Rodger knows her very well. They by an old friend ten years ago.

A．were introduced	B．introduced
C．are introduced	D．introduces

6 . —Have you heard about the shark attack accident at the SeaWorld show?
—Yeah, how horrible! A trainer ______ in front of the audience.

A．had been killed	B．has been killed
C．was killed	D．is killed

7 . Since the new speed limits ______, the number of accidents in the area has fallen strikingly．

A．were introduced

B．introduced

C．have been introduced

D．have introduced

8 . —Did you enjoy the party?
—Yes. We ___________ well by our hosts.

A．were treated	B．would be treated
C．treated	D．had treated

9 . More than a dozen students in that school ________ abroad to study medicine last year.

A．sent

B．were sent

C．had sent

D．had been sent

10 . -Have you heard about that fire in the market?
-Yes, fortunately no one ______.

A．hurt

B．was hurt

C．has hurt

D．had been hurt