Correct the errors in the following sentences, if .
A． not B． necessary
C． any D． ever
— Do you know __________ they got to know each other?
— It was last year ________ they both taught English in China.
A． when was it that; when B． when it was that; that
C． when it was that; when D． when was it that; that
It was announced that only when the terrible disease was under control _______ to return to their homes.
A. the residents would decide
B. would the residents decide
C. would the residents be decided
D. the residents would be decided
Only when _______ be possible to sign the papers.
A . does the lawyer come with it
B. the lawyer comes will it
C. has the lawyer come it will
D. the lawyer comes it will
It was _____ he came bank from Africa that year _________ he met the girl he would like to marry.
A. when; then B. not; until
C. not until; that D. only; when
Some of you may have finished unit one. _____, you can go on to unit two.
A. If you may B. If you do
C. If not D. If so
