问题
选择题
—Would you like________ the environment?
—I don’t know. What can I do?[ ]
A. help save
B. helping save
C. to help saving
D. to help save
答案
答案:D
—Would you like________ the environment?
—I don’t know. What can I do?[ ]
A. help save
B. helping save
C. to help saving
D. to help save
答案:D