{#blank#}1{#/blank#} {#blank#}2{#/blank#}hard{#blank#}3{#/blank#} {#blank#}4{#/blank#}how long this river is．

Many robots in foreign countries can communicate with people{#blank#}1{#/blank#}.

I prefer to sit {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} the car, next to the driver.

— 当然不介意。

— Would you {#blank#}1{#/blank#} {#blank#}2{#/blank#} me your bike?

— Of course not.

I don't have enough money, so I {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} .