—在26个英文字母中,元音字母是 。A.a,e,i,o,u B.a,e,i,o,r C.a,c,i,o,u
The doctor said he ______ any help.
The teacher was very grateful ______ you did.
At the beginning of the class, Miss Liu ______ the exercise books to the students.
--- Where is your uncle? --- He ______ to London. He ______ for over three months.
My sister ______ an English teacher in our school. Now she works in America.