The new teaching building is _______ the yellow one.
| A．as three times high as | B．three times the height of |
| C．three times high than | D．as three times the height of |
______ he has gone abroad is not true.
| A．Whether | B．When | C．That | D．Why |
We make ________ that whoever leaves last turns off the light.
| A．it a rule | B．a rule | C．the rule | D．a rule it |
_______ is certain that practice makes perfect.
| A．What | B．It | C．There | D．Anything |
With a lot of work _______, I can’t help you tonight.
| A．do | B．doing | C．done | D．to do |
Mr. Green was chosen ________ of the club.
| A．the chairman | B．chairman | C．a chairman | D．chairmen |