1 . People don’t realize how serious this accident has ______ (actual) been. (所给词的适当形式填空)

2 . ______(actual), he is an honest and reliable person. (所给词的适当形式填空)

3 . It's not ________ (actual) just for grandparents, but it's also to give grandparents an opportunity to show love to their children's children.(所给词的适当形式填空）

4 . For centuries, this simple counting device (设备) has been passed down through different dynasties with its original design and purpose ________ (actual) unchanged.(所给词的适当形式填空）

5 . It is said that humour not only affects patients' moods, but can ________ (actual) help them recover faster. （所给词的适当形式填空）

6 . I only intended to be there for a few days, but ________(act) I ended up staying there for a whole month.

7 . ___________________(actual) all languages change and develop when cultures meet and communicate with each other.

8 . There are lots of people who can________ (actual) help you. (所给词的适当形式填空)

9 . However, a plan can bear no fruit without being _____ (actual) carried out.

10 . ________ (其实), on second thoughts, I don’t think I want to go out tonight.