. The computer games you are addicted to _____ dangerous to students’ bodies and spirits.
| A．be | B．is | C．being | D．are |
Edward , you play so well. But I _____you played the piano.
| A．didn’t know | B．hadn’t known | C．don’t know | D．haven’t known |
昨日重现四------时态语态
-- You speak very good French!
--Thanks. I ____French in Sichuan University for four years.
| A．had studied | B．study | C．was study | D．studied |
—Did Jack come back early last night?
—Yes, It was not yet eight o’clock _____ he arrived home.
| A．before | B．when | C．that | D．until |
This is a very interesting book, I’ll buy it,______.
| A．how much may it cost | B．no matter how it may cost |
| C．however much it may cost | D．how may it cost |
It is difficult for us to learn a lesson in life_________we’ve actually had that lesson.
| A．until | B．after | C．since | D．when |