He had to retire(退休) early _____

He had to retire(退休) early ______ poor health.

#58273

as a result

because

because of

推荐题目

Listen carefully, _______ you can’t hear what the teacher is saying.

#57795

and

then

but

  Take a boat trip, ________ you will be attracted by the beauty of the Li River.

#55183

and

but

The hospital is new _____ very dirty.

#57557

and

but

 Don’t leave your seat ________ all the papers have been collected by the teacher.

#55185

after

when

since

until

 As we all know the H1N1 Flu is so serious, students can’t go into the school _______ they take the temperature and get sure they don’t have a fever.

#55588

till

after

when

until

共1556题