1 . He was feeling bad, _________ he went to work and tried to concentrate. (用适当的词填空)

2 . The app will suggest the user the best parking space, ________ guide the user to the parking space.(用适当的词填空)

3 . Turn your radio down, ____________you’ll wake the neighbors. (用适当的词填空)

4 . These external influences are always present, ________ there are certainly ways to deal with them. (用适当的词填空)

5 . You need to hydrate（给……补水）your skin,_________it will become too dry.（用适当的词填空）

6 . As is often the case, Jack surfs on the Internet, reading news, ______ his wife does every bit of the housework.

A．when

B．while

C．as

D．if

7 . I’m not sure whether John ______ his parents has arrived.

A．as well

B．as well as

C．as usual

D．as soon as

8 . I do every single bit of housework ______ my husband Bob just does the dishes now and then.

A．since	B．while
C．when	D．as

9 . Go home right now —   ______ your parents will worry.

A．though

B．but

C．however

D．otherwise

10 . You can make a complaint to the local government ____you are happy with the way things are.

A．unless

B．if

C．once

D．as