39. The teacher had no difficult getting the students (understand).
40 not/ become) so serious.
Part III: Writing (5 points)
Question 41-45: Find and correct one mistake in each of the sentences below.
Mistake Correction
Bạn đang xem 39. - DETHIHSG COM–DAP AN VA DE THI HOC SINH GIOI MON ANH VAN LOP 10 SO GD