1. my sut needs to be cleaned before the interview

=> i must have 

2. turn off all the switches before leaving the workshop

=> all the switches must

3. it's impossible for them to have found him in that jungle 

-> he

4. the thinking is that he has been targeted to succeed the president 

-> he is

5. they never made us do anything we didn't want to do

-> we

6. nothing was done about it 

-> nobody

7. we couldn't make the machine work

-> the machine

8. the hurricane blew the roof off the house 

-> the house 

9. oil was slowly coating the edge of the shore 

-> the edge of the shore 

Theo mẫu nguyên tử Bo, trạng thái dừng của nguyên tử :  

A. có thể là trạng thái cơ bản hoặc trạng thái kích thích.

B. là trạng thái mà các êlectron trong nguyên tử ngừng chuyển động.

C. chỉ là trạng thái kích thích.

D. chỉ là trạng thái cơ bản.