______ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.
| A．If only | B．Although | C．As long as | D．As soon as |
The teacher spoke very slowly ____the students could understand everything
he was saying.
| A．in order to | B．so as to | C．so that | D．such that |
These shoes look very good. I wonder _______.
| A．how much cost they are | B．how much do they cost |
| C．how much they cost | D．how much are they cost |
Tell us about the people and the places _
____ are different from ours.
| A．that | B．who | C．which | D．whom |
We would rather die than ______ difficulty.
| A．give up to | B．give in to | C．give way to | D．give back to |
—I am taking my driving 
test tomorrow.
—________！
| A．Cheers | B．Good luck | C．Come on | D．Congratulations |