It was in 1990 ______ the medicine was tested on human patients.
#85003
A
since
B
that
C
before
D
when
推荐题目
It wasn’t until 1970 the war finally came to an end after seven years of hard fighting.
#84680
A
that
B
before
C
when
D
since
_______ she was standing and waiting for a bus that she caught sight of the former President Clinton.
#85334
A
It was while
B
As soon as
C
While
D
During the time when
David said that it was______ his strong interest in literature_____ he chose the course.
#84865
A
because of; that
B
because; so
C
because; that
D
why; because
It was not until she got home __ Mary realized she had left her books in the classroom.
#85359
A
when
B
that
C
where
D
before
It is in the west of China _____ _____ is no doubt that it is going to rain tomorrow.
#85007
A
where; there
B
that; there
C
that; it
D
where; it