Question

tiene por masa atómica a = 48.8 y por número atómico Z = 20 Cuántos electrones y protones tiene​

Answer 1

Respuesta:

1. Which is a signal word for simple present?

a. now b. last Monday c. often

2. Which is a signal word for simple present?

a. sometimes b. at the moment c. yesterday

3. Which is a signal word for simple present?

a. last Friday b. every Friday c. next Friday

4. Which is not a signal word for simple present?

a. never b. already c. usually

5. Which is not a signal word for simple present?

a. Listen! b. first ... then … c. seldom

Answer 2

Respuesta:

Which is a signal word for simple present