【推荐1】I won’t lend you any more books ________ you return my dictionaries first.

A．until

B．when

C．since

D．though

【推荐2】Many people do not realize the importance of health _________ they fall ill.

A．since

B．until

C．while

D．after

【推荐3】—The students of Grade 9 have to take part in the PE test.
—Yes, ________ they are busy studying, they need to practice more.

A．unless

B．until

C．though

【推荐1】—The exercise is so difficult for your cousin.
—Yes, I am wondering ________ he can finish it by himself.

A．whether

B．where

C．that

【推荐2】— You know the theme of China Saving Week in 2024 is “Energy Saving With Me, Green Sharing”.
— Hmm, let’s do something to save energy, ________ it’s at home, at work or at school.

A．even though

B．unless

C．as long as

D．whether

【推荐3】We are talking about ________ libraries in universities of Nanjing should be open to the public.

A．what

B．which

C．whether

D．where

【推荐1】Buying and selling ivory are now against the law, the killing won’t end ________ the buying stops.

A．but

B．though

C．unless

D．until

【推荐2】My father didn’t buy a new computer ________ his old one totally broke down.

A．until

B．since

C．after

D．when

【推荐3】Tom knew nothing ________ his friend told him.

A．because

B．until

C．but

D．if

【推荐1】In my opinion, teenagers should do some housework ________ they finish their homework.

A．until

B．since

C．after

D．unless

【推荐2】I didn’t understand my mom’s love ________ we had a long talk.

A．until

B．if

C．since

D．be

【推荐3】The football match tonight is exciting, ________ don’t forget to do your homework, children.

A．because

B．but

C．so

D．or