1 . It seems that music can give me peace _________ (无论何时) I feel nervous.

2 . Why not use this app to save your pocket money ________ you are not going to spend it?

A．until

B．unless

C．though

D．since

3 . This term I _______ to improve my writing skills.

A．enjoy

B．need

C．how

D．whether

4 . I’ll go to visit my aunt in England ________ the summer holiday starts.

A．while

B．before

C．until

D．as soon as

5 . ________ I had a fight with my friend, we are still good friends.

A．So that

B．As soon as

C．Until

D．Although

6 . During the test, some students are writing carefully, ________ others are thinking deeply.

A．since

B．while

C．unless

D．though

7 . ________ it was very late at night, Tom still went on working in his office.

A．Although

B．If

C．Unless

D．Whether

8 . The house is still not clean enough ________ we have given it a thorough cleaning.

A．although

B．because

C．if

D．when

9 . —Your dream will come true ________ you put your mind to it.
—Yes, I agree with you.

A．if

B．unless

C．until

D．though

10 . —How was your climbing Mount Huangshan?
—I didn’t believe I could do it ________ I got to the top.

A．until

B．while

C．after

D．since