问题

My pen pal Andrew found it difficult ______ Chinesewell
A: learning
B: learn
C:to learn
D: learned
B: learn
C:to learn
D: learned
正确答案是:
同类题型
More and more people come to visit Mount Huangshan—That’s true. It has become the _______ of Anhui.
Many new cars are to be shown in Wanda Square, Longyan.—If so, I will buy for my dear wife.
What do you think of this film – Great! I_______ such a wonderful film before.
Why are you standing, Annie-I can’t see the blackboard clearly. Two tall boys are sitting_______ me.