It’s crazy of you to spend more time playing computer games than you ______ studying.
| A．are | B．do | C．have | D．will |
32. With no one to ______ in such a frightening situation, she felt very helpless.
| A．turn on | B．turn off | C．turn around | D．turn to |
31. Heisnotsuchaman_______wouldleavehisworkhalfdone.
| A．that | B．which | C．who | D．as |
30. _______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having separated |
| C．Having been separated | D．To be separated |
29. That was the first time I _______ there and I was impressed by the friendly people very much
| A．go | B．was going | C．had gone | D．have gone |
28. She had a computer at home, and her parents desired that she ______ all her work at home.
| A．do | B．does | C．must do | D．would do |