— Bob didn’t pass this exam.
— He____________.
| A．should study hard | B．should have studied hard |
| C．should be studying hard | D．study hard |
We have launched another manmade satellite, ________is announced in today’s newspaper.
| A．that | B．which |
| C．who | D．what |
Many countries are now setting up national parks________animals and plants can be protected.
| A．when | B．which |
| C．whose | D．where |
When I arrived，Bryan took me to see the house________I would be staying.
| A．what | B．when |
| C．where | D．which |
“You can’t judge a book by its cover，”________．
| A．as the saying goes old | B．goes as the old saying |
| C．as the old saying goes | D．goes as old the saying |
Half of ________ surveyed in 16 countries say they go first to their closest friend to share their deepest wishes and darkest fears.
| A．these | B．some |
| C．ones | D．those |