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TOEFL Preparation - Grammar Test
General English Grammar Questions and Answers

1. We ________ living here since 1990.

a. were

b. are

c. have been

d. had been

2. Akbar ________ the Moghul power paramount in India.

a. had made

b. has made

c. made

d. would make

3. She ________ for Delhi this evening.

a. is leaving

b. was leaving

c. have been leaving

d. had left

4. �I know you don�t like me. I don�t like you ________.�

a. neither

b. as well

c. either

d. too

5. I ________ school last year.

a. left

b. had left

c. leaved

d. was leaving

6. I ________ since six o�clock, and I was getting tired.

a. had been working

b. have been working

c. was working

d. is working

7. They will come if we ________ them.

a. invite

b. will invite

c. invited

d. would invite

8. She ________ the railway station before the train came.

a. had reached

b. has reached

c. reached

d. was reached

9. ________, she went on working.

a. as she was tired

b. tired she was

c. tired though she was

d. none of these

10. The train ________ by the time we reach the station.

a. will leave

b. will have

c. left

d. would

English Test

1. TOEFL Preparation - Grammar Test - 06

2. TOEFL Preparation - Grammar Test - 07

3. TOEFL Preparation - Grammar Test - 08

4. TOEFL Preparation - Grammar Test - 09

5. TOEFL Preparation - Grammar Test - 10

6. TOEFL Preparation - Grammar Test - 11

7. TOEFL Preparation - Grammar Test - 12

8. TOEFL Preparation - Grammar Test - 13

9. TOEFL Preparation - Grammar Test - 14

10. TOEFL Preparation - Grammar Test - 15

11. TOEFL Preparation - Grammar Test - 16

12. TOEFL Preparation - Grammar Test - 17

13. TOEFL Preparation - Grammar Test - 18

14. TOEFL Preparation - Grammar Test - 19

15. Antonym Test - 01

16. Antonym Test - 02

17. Antonym Test - 03

18. Antonym Test - 04

19. Antonym Test - 05

20. Antonym Test - 06

World Most Beautiful Temples

Krishna Janmashtami

Table Etiquettes

Class 9 - Triangle and Its Angles

Precautions while using Centrifuge

Safe Procedures for Centrifugation

Before centrifugation 1 Train each operator on proper operating procedures, review the user manual. 2 Use only rotors compatible with the centrifuge. Check the expiration date for ultracentrifuge rotors.3 Check tubes, bottles, and rotors for cracks and deformities before each use. 4 Make sure that the rotor, tubes, and spindle are dry and clean. 5 Examine O rings and replace if worn, cracked, or missing. 6 Never overfill centrifuge tubes (don t exceed ? full). 7 Always cap tubes before centrifugation. Always balance8 buckets, tubes, and rotors properly.9 Check that the rotor is seated on the drive correctly, close the lid on the centrifuge, and secure it.10 When using swinging bucket rotors, make sure that all buckets are hooked correctly and move freely.

Chourishi Systems