1 . As usual, I went to work on foot that day _______ it was raining heavily.

A．so that

B．as though

C．in case

D．even though

2 . It is crucial to opt for healthier foods to maintain good health and prevent lifestyle-related diseases,______ fast food is tempting due to its convenience and taste.

A．now that

B．even if

C．as long as

D．no matter how

4 . It’s getting dark, ________ they’re still working.

A．and

B．but

C．so

D．or

6 . __________ hard he tried, he failed as usual __________ he’d been cursed by the adversity (厄运).

A．Although; in case	B．How; so that
C．However; as though	D．However; even though

7 . I’ll see you at the theater        you call me to say you’re not coming.

A．because

B．unless

C．since

D．if

9 . Born in a wealthy family, the boy took everything in his life for granted___________ for the first time he saw how poor farmers struggled to survive the hard life with frugality.

A．until

B．that

C．when

D．while

10 . ___________ the recently released artificial intelligence video product Sora has gained significant attention for its cutting-edge technology and innovative features, concerns about its potential ethical implications, such as privacy violations, have emerged, posing a challenge for developers and policy makers.

A．Since

B．Once

C．When

D．While