试题详情

There is water on the floor. Be careful, or you will ________ .

The meeting will be held on ________. There will be no delay.

oard the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water hand

- Is the toilet on the ground floor or 2nd floor? - （　）.

uld always be full of confidence, or you will never be able to improve your English. You should oft