It is well-known to us all that knowledge is __ treasure, but practice is ___ key to it.
| A．a, ∕ | B．a, the | C．the, the | D．∕ , the |
____ it is to skate on real ice!
| A．What fun | B．What a fun | C．How a fun | D．What funs |
From the ______ expression on his face we can guess something ______ must have happened to him.
| A．confused, confusing | B．confusing, confused |
| C．confused, confused | D．confusing, confusing |
Mr Li who is in _____ charge of our class is very experienced.
| A．the | B．a | C．/ | D．an |
He is a man of ____ and he had a lot of interesting ____ in his life.
| A．much experience, experiences | B．many experiences, experience |
| C．much experience, experience | D．many experiences, experiences |
I don’t think _____ possible to master a foreign language without much memory work and practice.
| A．this | B．that | C．it | D．/ |