I never doubt _____ this exhibition is worth ________.
| A．whether, to visit | B．that, to visit |
| C．if, visiting | D．that, visiting |
—Why do you prevent them______playing computer games?
---Because they have a bad______on teenagers.
| A．from,effect | B．from,affect | C．to,effect | D．to,effect |
You_____to work more ______with our organization.
| A．must,close | B．must,closely | C．ought,close | D．ought,closely |
She_______ballet before she entered film industry.
| A．has practiced | B．had practiced | C．will practiced | D．would practiced |
Sometimes I doubt whether it is worth_______so_________.
| A．to work;hard | B．to work;hardly | C．working;hard | D． working;hardly |
---Did you go to bed early last night?
----No. I watched a _____ movie, so I didn't go to bed until 11 o’clock.
| A．3-hours | B．3-hours’ | C．3-hour’s | D．3-hour |