Which of the following sentences doesn’t  contain(包含) an object clause(宾语从句)?
#38136
A
Many people believe robots will do most of our work.
B
Scientists should be able to develop plants that grow on Mars.
C
People think that humans on Mars have to wear special boots to make themselves heavier.
D
We all know the next Olympic Games will be held in Beijing.
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My father told me _______. 
#37679
A
when he will travel to Singapore
B
how he finds his purse
C
where he had spent his holidays
D
why did he visit Hangzhou
 –Mr Li, I found a watch on the playground.-You should try to find out ______.
#36381
A
whose is the watch
B
who is the owner of the watch
C
whom does the watch belong to
D
who the owner of the watch is
Let me tell you ________.
#37734
A
how much is the car
B
how much does the car cost
C
how much did I pay for the car
D
how much I spent on the car
 I asked her _____ have to study before I could go to university.
#78993
A
how long would I
B
how soon would I
C
how long I would
D
how soon I would