定语从句 1. Don’t talk about such things of __________ you are not sure. A. which B. what C. as

定语从句 1. Don’t talk about such things of __________ you are not sure. A. which B. what C. as
定语从句
1. Don’t talk about such things of __________ you are not sure.
A. which
B. what
C. as
D. those
2. Is this the factory __________ you visited the other day?
A. that
B. where
C. in which
D. the one
3. Is this factory __________ some foreign friends visited last Friday?
A. that
B. where
C. which
D. the one
4. Is this the factory __________ he worked ten years ago?
A. that
B. where
C. which
D. the one
5. The wolves hid themselves in the places __________ couldn’t be found.
A. that
B. where
C. in which
D. in that
6. The freezing point is the temperature __________ water changes into ice.
A. at which
B. on that
C. in which
D. of what
7. This book will show you __________ can be used in other contexts..
A. how you have observed
B. what you have observed
C. that you have observed
D. how that you have observed
8. The reason is __________ he is unable to operate the machine.
A. because
B. why
C. that
D. whether
9. I’ll tell you __________ he told me last week.
A. all which
B. that
C. all that
D. which
10. That tree, __________ branches are almost bare, is very old.
A. whose
B. of which
C. in which
D. on which