Is that the small company you often refer to?—–Right,just the one ______you know I used to work for years.

I found _______ difficult to finish all the work in such a short time.

I am not allowed to bring my mobile phone to school.— _______. Our teacher says it’s bad for our study.

She was given the chance to ______ designing the new bridge.

dioxide, which makes a ______ between us andthe sun, prevents heat from getting out of the atmosphere easily, so the earthis becoming warmer