Cho dạng đúng của các động từ trong ngoặc đơn sau đây84. where your children ( be)? 85. the telephone rang several time and then ( stop) before I could answer it 86. the bank ( close) at four o' clock 87. the little boy ( spend) hours in his room making his toys 88. jamie passed the exam because he ( study) very hard 89. my mother ( fry) eggs for breakfast every morning |