children believe they can succeed, they will never become totally independent．
| A．If | B．Though | C．Unless | D．When |
There is no doubt _________ the world climate has been changing in recent years.
| A．that | B．what | C．if | D．whether |
He looks so weak and pale ________ suffering from a serious illness.
| A．as if | B．as long as | C．now that | D．even if |
Scientists say it may be one year or so ________ it is possible to test the new medicine on human patients.
| A．when | B．after | C．before | D．since |
He hasn’t got any hobbies---_______ you call watching TV a hobby.
| A．If | B．Unless | C．When | D．Since |
It was 1920 ______ regular radio broadcasts began.
| A．while | B．when | C．that | D．since |
People all over the country felt shocked _______ they heard of the news ______eight children were killed at the school gate .
| A．the moment , that | B．when , which | C．immediately , / | D．the second , what |
I will never forget such a beautiful village __________ I spent my childhood there with my grandparents.
| A．because | B．that | C．in which | D．where |
The boy was so tired that he fell asleep ______ his mother could take off his clothes．
| A．before | B．after | C．while | D．when |
------What do you think of her?
------I thought her nice and honest I met her.
| A．the first time | B．for the first time |
| C．first time | D．by the first time |