Grammar casino

1 I have been knowing her since childhood, she’s a great friend.
1 I have known her since childhood, she’s a great friend.

2 My boss was entering my office when I was talking to my grandmother.
2 My boss entered my office when I was talking to my grandmother.

3 The gas prices are likely to go up because of the political conflict.

4 He asked us how much was the entrance fee.
4 He asked us how much the entrance fee was.

5 They can’t afford celebrating their wedding in that restaurant, so the chose another one.
5 They can’t afford to celebrate their wedding in that restaurant, so the chose another one.

6 By the time I finish the book the author will be writing a new one.
6 By the time I finish the book the author will have writen a new one.

7 We’re not quite sure, but it might have been broken while we were driving.

8 This semester I try to do my homework the same day I get it.
8 This semester I am trying to do my homework the same day I get it.

9 If the children didn’t paint on the walls at that birthday party, we wouldn’t have to redecorate the house!
9 If the children hadn’t painted on the walls at that birthday party, we wouldn’t have to redecorate the house!

10 I had already finished the conversation when they arrived.

11 Her plane is arriving at midnight and we supposed to meet her at the airport.
11 Her plane arrives at midnight and we are supposed to meet her at the airport.

12 This time tomorrow I will be having lunch with my old friends.

13 You mustn’t pay the rent in advance – you can pay later.
13 You don’t have to pay the rent in advance – you can pay later.

14 Don’t go there! The floor has been painted.

15 We are really looking forward to see you next month at the job fair.
15 We are really looking forward to seeing you next month at the job fair.

16 They aren’t thinking of buying that house because the price is too high.

17 She claimed finishing the presentation all by herself.
17 She claimed that she had finished the presentation all by herself.

18 I drove my car to the station and changed the flat tire.
18 I drove my car to the station and had the flat tire changed.

19 If this wasn’t such a terrible idea, we would have got very rich last month.

20 I know her. She mustn’t have stolen the bracelet.
20 I know her. She can’t have stolen the bracelet.