Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

              Last summer Nam, my old classmate, decided to do a three-week course in Australia because he wanted (1) ________ his English. On his first day at the language school, they ‎(2) _________ him a test, and the teacher told him, “We’ll put you in the top class.” He was very (3) ____________ to hear that, and, “I am sorry to say”, he proudly to tell all his friends at home, “I’m one of the best students!” But soon he was surprised to find ‎(4) _____________ difficult the class was. He was also felt homesick. “It’s hard to adapt to life in another country!” he thought. At the end of the three weeks, his English was much better, but he was happy to return home.

1. A. improve                 B. improving      C. improved           D. to improve 

2. A. carried                        B. gave          C. received                 D. brought

3.A. pleasing                 B. pleasant              C. pleasure                          D. pleased

4. A. how                      B. which           C. why                  D. what