In order to improve English，________.
A．Jenny’s father bought her a lot of tapes
B．Jenny bought a lot of tapes for herself
C．a lot of tapes were bought by Jenny
D．a lot of tapes were bought by Jenny’s father
The global warming is more and more serious，for which human beings ________.
A．are blaming B．are to blame
C．are going to blame D．are to be blamed
Taking this medicine，if________，will of course do good to his health.
A．continued B．to continue
C．continues D．continuing
________such a heavy loss，the businessman didn’t have the courage to go on.
A．Having suffered B．Suffering
C．To suffer D．Suffered
I’ve worked with children before，so I knew what ________ in my new job.
A．expected B．to expect
C．to be expected D．expects
Generally speaking，prices of daily goods ________ through the Internet are lower than store prices.
A．to buy B．are bought
C．buying D．bought
