Trong phân tử peptit Gly-Ala-Val-Lys thì amino axit đầu C là

A. Lys.

B. Val.

C. Ala.

D. Gly.

She is doing her homework.

She is riding her bike on street.

She is driving her car .

She is playing volleyball.

........................ vv

1. Lan is a student.

2. She often gets up at six o'clock.

3. She goes to school at six forty five.

4. She studies at school from seven o'clock to eleven forty five.

5. She plays the piano in the afternoon.

6. She sometimes watches TV in the evening .