My next door neighbor is so kind _____he is always ready to help others.
A. that B. when C. but
The careless boy lost his key, _______ he had to wait for his mom in the cold.
| A．and | B．or |
| C．for | D．so |
My English teacher is very knowledgeable_______ she has been to many countries.
| A．but | B．so that |
| C．because | D．when |
________ our teacher is ill, ________ he still comes to our class to teach us.
| A．Though; but | B．Though; / |
| C．Although; but | D．/ ; but |
I don’t have to introduce him to you __ you know the boy.
A. until B unless C. since D but
I like sleeping with the window open ______ it’s too cold.
| A．if | B．when |
C．until | D．unless |
Don’t worry about Peter. He is _______ to get over the problem.
| A．enough strong | B．too strong |
| C．strong too | D．strong enough |
—_____will you stay here? —Until tomorrow afternoon．
| A．How long | B．How soon |
| C．When | D．How often |
he is very young, he can do many things.
| A．Although, but | B．Although,/ |
| C．/,though | D．But, though |
-- Be careful, _______ you will make mistakes in your exams.
--I know that, Mrs. White. One can never be too careful.
| A．and | B．or | C．nor | D．but |
--What is our physics teacher like, do you know?
--Oh, he is very kind _________ he looks very serious.
| A．because | B．though |
| C．if | D．when |
_______ it is very hot in Chongqing in summer, people still love to eat hot pot. It is the most popular food in the city.
| A．When | B．If |
| C．Though | D．because |
Neither Sara nor her sisters ___________ to Beijing before, so they are planning to go there next year.
| A．has been | B．have been |
| C．have gone | D．has gone |
Elsa hates going shopping, she went last night when her grandpa asked her to buy some medicine for him.
| A．because | B．but | C．if | D．so |
My father was preparing for his speech __ my mother was doing some washing last night.
| A．if | B．while | C．unless | D．until |
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