Mark and Olga (to chat) for over a month when they (to meet) in the park. 134. He (already to build) his house when (to finish) school.
135. They (to wait) for her for about 3 hours when at last they ( to see) her near the monument.
136. By age 10, Oleg (to draw and to create) unusual wooden toys.
139. Before Zhanelya (to exhibit) her paintings, she (to work) for 15 years.
140. They (to sleep) in the afternoon as they (to extinguish) the fire all night.