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Mr. Liu dreamed ____ a big house for his parents after they retire.

A．to buy            B．to buying          C．of buying          D．of being buying

He devoted all the time _____ his research .

A．to do             B．doing             C．to doing           D．did

Work hard at your lessons, ______ you’ll fail the exams again.

A．a(chǎn)nd              B．but              C．or               D．which

I don’t think _____ possible to master a foreign language without much memory work and practice.

A．this              B．that              C．it                D．/

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

Mr Li who is in _____ charge of our class is very experienced.

A．the              B．a(chǎn)                C．/                D．a(chǎn)n

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

____ it is to skate on real ice!

A．What fun          B．What a fun         C．How a fun         D．What funs

They are talking _______ they were old friends.

A．a(chǎn)s if              B．a(chǎn)s although        C．even if            D．even though

He is such a good teacher ______ we all respect.

A．that              B．so               C．a(chǎn)s               D．who