1 . 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

2 . ________ it is learning in school through computer, relaxing at home with video games and TV or communicating with friends on phones and social media, time spent on screens has become an essential part of modern life.

A．Because

B．While

C．Whether

D．As

3 . It is essential to know about the corporate identity of the company you are applying to ______ the interview takes place.

A．unless

B．while

C．until

D．before

4 . He must be ill, ________ he looks so pale.

A．since

B．because

C．as

D．for

5 . ________ you start with one small positive thing during your day, you’ll begin to move into a more positive situation.

A．Even if

B．In case

C．As long as

D．As far as

6 . Have you ever had the experience that you were on the point of leaving for a place in urgency ________ you needed to go to the toilet.

A．while

B．when

C．as

D．before

7 . She had to give the doorman a tip _________ he would help her with the suitcases; otherwise, she could turn to nobody except herself on such a hot day.

A．before

B．unless

C．if

D．until