【推荐1】________ you have grown up, you should think and make decisions on your own.

A．Until

B．Since

C．Although

D．When

【推荐2】______ my car is very old, it still runs very well.

A．Since

B．Because

C．Although

D．So

【推荐3】________ the work there is hard and dirty, the volunteers are very happy to help in the hospital.

A．Until

B．Although

C．If

D．Unless

【推荐1】—Though the old man didn’t have enough money, _________ he gave a thousand yuan to the charity.   
—He is a good man.

A．/

B．and

C．but

【推荐2】—Would you like to play basketball with us?
—Yes. I'd love to. ________ I am afraid I have no time.

A．Or

B．And

C．So

D．But

【推荐3】—Do you love your teachers, enny?
—Yes, of course. Love from our teachers is like the wind. You can’t see it ________ you can feel it. And we love them too.

A．or

B．and

C．so

D．but

【推荐1】—________ we met a lot of difficulties in the past, we got together to pass the difficult time.
—It’s true. We believe tomorrow is better.

A．Though

B．Because

C．Before

【推荐2】________ it is healthy to drink milk, some people never drink it.

A．Because

B．Although

C．If

【推荐3】________ Peter won the table tennis match yesterday, he didn’t feel satisfied.

A．If

B．Because

C．Although

【推荐1】Middle school students should keep taking exercise every day ____ they are busy with so many subjects.

A．until

B．because

C．though

D．unless

【推荐2】Give plants water. The crops won’t grow very well ________ it rains soon.

A．unless

B．if

C．because

D．although

【推荐3】________ Sam is a 3-year-old American boy, he can speak Chinese very well.

A．Although

B．Because

C．When