In my opinion, all Mr Tom ______ good to his students in his class at present. He is very strict in their study.
We must take two aspects into consideration, both of __________ associated with the safety of the students .
It was early morning in London _____ Prime Minister Cameron arrived to give his speech.
—I've got a bad cold.Can I take two days ____, Mr.Cage? —Yes, by all means.Take care.
—What do you think of that housewife? —She is _____ of a good housekeeper, for the children’s room is always a terrible mess.
It is uncertain side effect the medicine will bring about , though about one thousand patients have taken it.