._______wants to study English well must learn things____________.A No matter who; with heart B who; from his heartC whoever ; by heart D whomever; by his heart
.— I’d better__________ now.The water is boiling in the kitchen. — Good-bye.
.Only by shouting at the top of his voice__________.
.—Must I give the pen to the manager ? —No, you may give it to________you think is on duty in the office .
.Look! The dictionary, ________cover is red, is a birthday gift given by Tom.
_______environmental damage is done, it takes many years for the ecosystem to recover.