he was exercising at the park yesterday morning , he found a purse under the tree.

― Do you like coffee or milk―Both. But I prefer coffee _____ milk.

Mrs Lin advised the students___with friends online and said it was a waste of time.

He was such __ good speaker that he held our attention every minute of __ three-hour lecture.

It is generally considered that a taxi driver ought to be quite familiar ________ the streets in the city.[ ]