The students are to submit their final assignments by the end of this month. are to submit in this sentence shows….

I had to wait five minutes on the line _____________ him.

I went to the post office _____________ some stamps.

You must do your homework before you can go out. The underlined words can be best replaced by________

Although her parents refused, Nina still wanted __________ a surgeon when she grew up.

Mrs. Weaver is a single parent. She has to work hard ____________ a living for herself and her family of five children.