Beggars on the street are becoming a ……… sight. All people are worried about it.

The river is too dangerous to ……………………. .

GPS stands for Global ……………….. System.

A ………………. vehicle uses two or more distinct types of power.

With just a few ……………. on the computer mouse, you enter different worlds.

It is better if we all use public transport to get ………………….

Robots put parts ……………….. in car factories.

. A teacher must give each student a ……………. on their performance.

. Some people are ……………. modern technology, others are against it.

When he goes to restaurants, he always tries to chat …………… the waitresses.