1 . Further research is needed to __________ why and what these results mean practically for human health.

A．figure out

B．give out

C．mark out

D．try out

2 . You should not give up an outdoor exercise routine just because it is windy or rainy. Having the right kit will __________ make it a better experience.

A．patiently

B．definitely

C．partly

D．slightly

3 . When __________ 1.4 billion Chinese work with one heart and one mind, and stand in unity with __________ strong will, no task will be impossible.

A．the; the

B．a; a

C．the; a

D．a; the

4 . According to some experts, the 24 solar terms were used for the first time in books during the Western Han Dynasty, __________ the Start of Spring was set as the Spring Festival.

A．where

B．when

C．that

D．which

5 . A recent study shows that the post-00s generation has an average bedtime of 00:33 a. m. __________ the pre-1970s has an average bedtime of 23:02p. m.

A．when

B．as

C．while

D．since

6 . Her father promised that he would offer her a car if she could __________ her exams.

A．get through

B．get over

C．get around

D．get off

7 . Their teaching experience __________ from two to over ten years, and they taught classes __________ in size from 20 to 23 students.

A．ranged; ranged

B．ranging; ranging

C．ranging; ranged

D．ranged; ranging

8 . The Qingming Festival of 2024, __________ on April 4, is an important festival in China when people offer sacrifices to their ancestors.

A．falls

B．fallen

C．falling

D．to fall

9 . ________ to control the water pollution is a big problem.

A．Where

B．What

C．Why

D．How

10 . After working hard for a whole day, he was ________.

A．worn out

B．broken out

C．run out

D．stressed out