that I was in trouble, Tom came to my aid without delay.

She used _____ on the right in China, so she was not used _____ on the left in England at first.

‘t be sure, weshould______the weather factor What shall we do if it is foggy

Neither the students _______ the teacher _______ invited.

A little paint will soon ____this old car. — You mean we needn’t buy a new car at all? [ ]