问题

rvey shows that ______ we are enjoying less and less good sleep, rates of heart diseases have risen rapidly．

A:while
B:although
C:if only
D:as though

正确答案是：

同类题型

Shall I get you a cup of tea — _____ . I’ll do it myself.

often ______ as an activity for youngerchildren, is still important in the social development of teenagers.

On Saturdays, students are very proud to be on the street to guide passers-by to obey traffic rules.

Jenny is one of _______ in our school.

_____professional development, big cities appeal to many young people