Where have you been all day?—I _______ some former classmates and I couldn’t get back until it was dark

usefulsuggestion he offered to us!—You’re right. It was of great.

Your aunt often walks the dog in the morning.— Yeah, ___________ bad weather stops her.

It is generally believed that _____ study, we can gain both knowledge and skills[ ]

64. I suggest you having plenty of exerciseinstead of playing _____ day and night.