It wasof you to send me a birthday card.
A. considerable
B. cautious
C. considerate
D. conscious
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It was the training that he had as a young man made him such a good engineer.
A. that
B. what
C. when
D. who
It is not until he failed in the testhe realized he should work hard.
A. when
B. before
C. that
D. after
we began studying English.
A. It is not until 1992 that
B. It is until 1992 that
C. It is not until 1992 when
D. It is not until 1992 while
It was not until he had arrived at home his appointment with the doctor.
A. when remembered
B. did he remember
C. that he remembered
D. and he remembered
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