4.
It should be "I met them when I was in Paris. It was in 1990."
Answer: B
5.
It should be "I will finish my homework before I go to bed."
Answer: D
6.
It should be "There isn't any sugar left in the kitchen."
Answer: A
7.
It should be "We are interested in going to the beach in Mexico."
Answer: C
8.
It should be "My brother will open the fridge as soon as he arrives home."
Answer: ○
9.
It should be "I'm keen on traveling to visit other places."
Answer: B
10.
It should be "Some of the agricultural practices today are responsible for fostering desertification."
Answer: C
11.
It should be "Do you have a minute? I'd like to tell you about something."
Answer: B
12.
It should be "She won't enjoy the trip until you tell her what happened a few days ago."
Answer: C
13.
It should be "I was keen on enjoying my time with my family in London last week."
Answer: D
14.
It should be "It will probably rain when you get back tonight."
Answer: A
15.
It should be "Your shoes will be ready in twenty minutes."
Answer: D