He ______back and he left a note for you.
A. came
B. has been
C. will be
D. is being
第1题:
A.he, it
B.he, them
C.they, him
D.he, they
第2题:
Ada: How's the young man?
Bill:______
A、He's twenty.
B、He's a doctor.
C、He's much better.
D、He's Dick.
第3题:
第4题:
A.come
B.is coming
C.came
第5题:
He’s watching TV? He’s ________ to be cleaning his room.
A) known B) supposed C) regarded D) considered
第6题:
细胞核的描述正确的是
A.为嗜酸性,在HE染色中与苏木精结合
B.为嗜碱性,在HE染色中与伊红结合
C.为碱性,在HE染色中与伊红结合
D.为酸性,在HE染色中与苏木精结合