________ doing his experiment, he forgot to pick up his wife from the station.

Can you guess _______ the new Nike sports shoes—Yes, maybe he asked his grandpa for the money, I think.

It is dangerous ____ you ______ a close look at the tiger in the zoo.

Is this ____ car—Yes, it’s ____ English car.

It is a truth________acknowledged that when one has gained material wealth, he’ll surely seek for spiritual enjoyment