
Answer — Exercise 33
Additional exercises·English Grammar in Use
Question
Put in one of the following.
Answer
- in
- on
- on; at
- at / on
- on
- at
- In
- at
- during
- on; since
- for
- at
- at; until
- by
- in

Additional exercises·English Grammar in Use
Question
Put in one of the following.
Answer