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We have Chinese ______________eight o'clock.．

A．in                 B．to                C．at

I switch ______________ the computer and open a new document．

A．at              B．on            C．off

My friend, Li Ling, invites me _______________his home．

A．to                    B．for                   C．on

He watches the football ______________TV ___________Sunday morning．

A．at；on           B．on；on              C．in；in

The zoo has_____________ animals．

A．five thousand           B．thousands          C．five thousands of

Tom ____________plays computer games in the evening．

A．sometimes          B．some time          C．some times

We have four classes______________．

A．on Monday         B．from Monday        C．to Monday

—What time is it now?

—It's half ________________five．

A．past             B．to            C．on

My grandparents always wear ____________________glasses．

A．they           B．them            C．their

Have you got _______________juice?

A．some               B．a               C．any