【題目】All of the trousers are well designed, and I don’t know which one to_________. (choice)

【題目】The parents were thankful to see that their children came back home _________. (safe)

【題目】Before the sun rose, the old _________ went to the sea to look for the lost boat again. (fish)

【題目】Last night I had a cup of coffee in Starbucks, and then I found it hard to fall _________. (sleep)

【題目】Simon didn’t say anything about the case because he wanted to keep the secret to _________ (him)

【題目】To reduce the spread of virus（病毒）, many countries stop _________ from entering. (foreign)

【題目】The doctor told Windy to exercise at least _________ a week if she wanted to keep healthy. (two)

【題目】—Thanks for sharing your masks with us! —_________.

【題目】_________ it was a hard journey, the young men didn’t give up halfway.

【題目】_________ great fun it is to gather with close friends, chatting and laughing!