—How long have you known the doctor ? — he helped me three years ago.

—How long have you known the doctor ? —         he helped me three years ago.

#58435

When　

Before　

Because

Since

推荐题目

--___________has he been like this?--Ever since last week.

#58079

How long

How soon

How often

How much

Eric has got two aunts，________ he hasn’t got any uncles．

#58126

and

but

Study hard,_______ you will not pass the exam.

#58185

and

but

Though English is very difficult to learn, _____ Li Ping _____ Li Lei speak English well．

#55903

neither ; nor

either ; or

both ; and

either ; or

The rivers will become dirtier and dirtier _______ we take action to protect them.

#55533

since

until

Unless

共1556题