1 . Feeling fearful is healthy ________ it helps you slow down and evaluate risks properly.

A．because

B．until

C．before

D．although

2 . You can learn enough first aid knowledge in a few minutes—________ it’s from reading a book, attending a course or watching videos online.

A．when

B．as

C．whether

D．once

3 . One of the earliest-known inventions is the bow and arrow, which is still used throughout the world today, 15, 000 years ________ it was first invented. （用适当的词填空）

4 . ________ChatGPT, an advanced AI chatbot, can interact in a conversational way, it still struggles to be completely accurate with its responses.

A．Since

B．Unless

C．Once

D．Although

5 . You have my word ________ I won the lottery one day, I would buy you a new car.

A．if

B．that

C．if that

D．that if

6 . The environment won’t be getting better ______ the majority of us take steps to reduce waste and pollution.

A．though

B．since

C．if

D．unless

7 . Generous husband __________ he might be, he was more than angry with his wife — she spent all their savings on a diamond necklace. （用适当的词填空）

8 . 今年的春晚(The Spring Festival Gala)好戏连台，有悦耳动听的歌曲，美轮美奂的舞蹈，还有风趣幽默的相声，观众们在喜庆的气氛中辞旧迎新。(so that) （汉译英）

9 . 春日阳光和煦，人们不禁想要出去走走。(so…that ) （汉译英）

10 . Young people are more willing to study the skills of paper cutting these days, _____ local authorities have put great efforts in promoting the handicraft.

A．if

B．though

C．as

D．unless