In the dark street, there wasn’t a single person, _______ she could turn for help.
A. that B who C. from whom D. to whom
One reason why_____plane is such a popular means of_____transport is that it is very fast and safe.
| A．the; / | B．a; the | C．a;/ | D．the; the |
Would you please put the dictionary ____ it belongs ?
| A．to whom | B．to which | C．where | D．that |
___ I have often heard this song, I have never heard you sing it.
| A．In case | B．Though | C．Even | D．In spite of |
I wouldn't manage to do it___ you had explained how.
| A．unless | B．until | C．when | D．since |
She often wears the same kind of skirt ___ her twin sister does.
A, that B.which C.as D.what