______ he came to England to study, he didn’t know how to cook.
A. When
B. since
C. Until
D. Unless
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Although Mr smith is one of those teachers who appear to be friendly, ______ he is very hard to deal with.
A. but
B. so
C. so that
D. yet
______ a baby kangaroo is four months old does it begin to live outside its mother’s pouch.
A. Until
B. Not until
C. After
D. Only until
The earliest kind of desk was a box that had a sloping lid _______ there was storage space for writing materials.
A. under that
B. under which
C. which
D. that
I won’t lend any money to Joe because I am afraid ______ he will forget to pay it back.
A. if
B. whether
C. that
D. of