Điền giới từ phù hợp để hoàn thành câu. Hoa was ______ pleased that she got an A for her assignment

a. Hoa was ______ pleased that she got an A for her assignment.
b. The old man walked______to the park
c. Tuan sighed____when he lieard that he failed the test
d. The baby laughed_____as she played with her toys
e. Mrs.Nga speak English quite____