Insert can or can’t. 1) I'm sorry but we come to your party next Saturday.
2) I like this hotel room. You see the mountains from the window.
3) You speak very quietly. I hear you.
4) Can you see my bag? I find it.

can't, can, can't, can't

1) I'm sorry but we can't come to your party next Saturday.

Explanation: The word "can't" should be used in this sentence to show that the person is unable to attend the party on the specified date.

2) I like this hotel room. You can see the mountains from the window.

Explanation: The word "can" should be used in this sentence to indicate that it is possible to see the mountains from the window of the hotel room.

3) You speak very quietly. I can hear you.

Explanation: The word "can" should be used in this sentence to state that the speaker is able to hear the person who is speaking quietly.

4) Can you see my bag? I can find it.

Explanation: The word "can" should be used in the first part of the sentence to ask if the person is capable of seeing the bag. In the second part of the sentence, the word "can" should be used to convey that the speaker is able to find the bag.