شرکت در آزمون آنلاین انگلیسی 3 - درس سوم

1- The scientists believed that until that time most of the fossil fuels ......... in an unbelievable way.

have used

had used

have been used

had been used

2-

We all know that when two people cooperate with each other, they ....... better ideas.

come up with

measure

give off

found

3-

Can you lend me some dollars? I have ...................... my salary before pay day.

put back

come up

used up

given off

4-

If people use more warm water, they ………....………… to pay more .

must be asked

will be asking

had asked

must ask

5- School libraries can be a very useful and available .......... of information for the students.

fuel

turbine

source

panel

شرکت در آزمون آنلاین انگلیسی 3 - درس سوم | آزمون شماره 7654