87。 Hvaing spent some time in the city, he had no trouble  (in finding the way to the Museum of History)

 

88. (In order to earn enough money to afford my education), mother often takes on more work than is good for her.

 

89. The professor required that ( we hand in the research reports) by Wednesday.

 

90. The more you explain, (the more confused I get).

 

91. Though a skilled worker, (he was fired by the company) last week because of the economic crisis.