专升本考试

【单选题】The students have no difficulty ______ the exercise.
A．in doing
B．to do
C．with
D．doing

网考网参考答案：A
网考网解析：
have no difficulty in doing sth．做某事无困难。学生作这个练习不费劲。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>