My mother was cooking in the kitchen ________ I came home.

A.after B.while C.when D.until

(2018邢台二模) You'd better bring a sweater ________ it is cold there in the evening.

A.unless B.because C.when D.if

(2018邢台二模) I bought my friend a birthday present, ________ he liked it very much.

A.or B.but C.and D.so

(2018承德双桥区一模) A tourist will easily lose his way in a new city ________ he has a map or a guide.

A.if B.because C.unless D.when

(2018秦皇岛一模)Simon thinks the math question is difficult, ________ Lucy thinks it is easy.

A.and B.or C.so D.but

(2018保定莲池区二模) ________ it is very cold outside, we still do exercise every morning.

A.Unless B.Until C.Although D.Because

(2018张家口桥西区一模) I have much homework to do today, ________ I cannot play football with you.

A.or B.so C.and D.but

Jack has learned more about teamwork ________ he joined the soccer team.

A.until B.since C.while D.though

(2018襄阳改编) Be quick, ________ we'll fail to catch the school bus.

A.and B.but C.or D.so

(2018百色改编) ________Wu Lan is still young, she can help her mother do some housework on weekends.

A.After B.Until C.Though D.Unless