—我还没有确定。

—What size of {#blank#}1{#/blank#} would you like to {#blank#}2{#/blank#}?

—I'm not {#blank#}3{#/blank#} {#blank#}4{#/blank#}.

She {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} her mother came back last night.

{#blank#}1{#/blank#}you {#blank#}2{#/blank#} {#blank#}3{#/blank#}your speech?

{#blank#}1{#/blank#}， he refused to cooperate with us.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#}the second day, we climbed the mountain.

The mobile phone {#blank#}1{#/blank#} an important {#blank#}2{#/blank#} in people's work and life.