1 . If you c________ your legs often, you will have O-shaped legs.

2 . Look! An old man ________ (cross) the street. Let’s go up to help him.

3 . For the villagers, it’s difficult ________ (cross) the river.

4 . Be careful when you __________ the road because there are __________ cars and buses every morning.

A．across; hundreds of

B．across; two hundred

C．cross; hundreds of

D．cross; two hundred of

5 . The students go on a rope way to cross the river to school.
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6 . There is a bridge ________ the river. Be careful when you ________ it.

A．over; across

B．across; over

C．cross; over

D．over; cross

7 . It’s difficult ________ (cross) the river on a ropeway.

8 . 过了桥，你就会看到那个旅馆。（… , and you will…）
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9 . It is dangerous ________ (cross) the road now. There are too many cars.

10 . Light comes in ________ the window.

A．cross

B．across

C．past

D．through