5．This is a big class，and          of the students are girls．

A．two third             B．second three          C．two thirds            D．two three

4．Look out! The traffic is moving fast．It's          dangerous          cross the street．

A．very；to              B．so；that               C．enough；to          D．too；to

3．There is something wrong with my ears．I can't hear         ．

A．clear enough        B．clearly enough         C．enough clear        D．enough clearly

2．Don't watch TV．It's too late．Please          and go to bed right away．

A．turn down it         B．turn off it               C．turn it off            D．turn it down

1．         you          to the aquarium last Monday?

A．Were，go            B．Do，went            C．Did，went           D．Did，go