___________ with the size of the whole earth, the biggest ocean does not seem big at all.
| A．Compare | B．Comparing | C．When compared | D．When comparing |
He is such a good teacher ______ we all respect.
| A．that | B．so | C．as | D．who |
They are talking _______ they were old friends.
| A．as if | B．as although | C．even if | D．even though |
____ 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 |