________ with care, one tin will last for six weeks.
You may catch up with others__________you work a little harder.
__________ the students are doing their maths exercises with the help of the teacher.
---- ______was it______ you discovered the secret of his?-----Totally by chance .
------Do you feel like ___there or shall we take a bus?-----I’d like to walk. But since there isn’t much time left ,I’d rather you ___a taxi.
The day we are looking forward__________at last.