![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
He didn't go to school ______ he is ill.A.whenB.asC.while
He didn't go to school ______ he is ill.
A.when
B.as
C.while
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
He didn't go to school ______ he is ill.
A.when
B.as
C.while
He didn’t go out to play () he had finished his homework.
A、until
B、if
C、since
D、but
It was because he was ill______he didn't go to school.
A.that
B.when
C.then
D.so
He______have been nervous because he didn't go straight in.
A.ought to
B.must
C.should
D.had to
A.because of, because
B.because, because
C.because, because of
D.because of, because of
A.since
B.as
C.because
D.though
Why didn't he go to see the doctor immediately?
A.Because he is too busy with his work.
B.Because he feels unsure about his symptoms.
C.Because he ignores the severity of the symptoms.
D.Because he hates to see the doctor.
David had been there for nearly an hour. He didn't know ______ to wait or go home.
A.if
B.neither
C.whether
D.either
He()to Shanghai for I saw here a minute ago.
A. can't go
B. can't have gone
C. didn't go
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!