Question

Passive Voice: Present and Past
Fill in the blanks with suitable active and passive
verb forms.

1. Oxygen ... by red blood cells.
a. carrying
b. is carrying
c. is carried
d. carried
2. Bread ... from wheat.
a. is made
b. made
c. making
d. is making
3. Penicillin ... by Sir Alexander Fleming.
a. is discovered
b. was discovered
c. discovered
d. was discovering
4. Two people ... in the accident.
a. are killed
b. were died
c. were killed
d. was killed
5. In many countries, Labour day ... on May 1 every year.
a. is celebrate
b. is celebrated
c. is celebrating
d. celebrated

Answer 1

Respuesta:

1 is carried

2 is made

3 was discovered

4 were killed

5 is celebrated

Explicación:

El presente pasivo se construye con Is o Are +Verbo en participio pasado

El pasado pasivo se construye con Was o Were + Verbo en participio pasado