The theory he sticks to ______ to be of nouse in our studies.

The time has come ______ we can makeextensive use of nuclear energy

Were you busy last weekend? — Very. Rather than ____ time playing cards as usual, I devoted everymyself to ____ an advertisement. [ ]

asn’t happy about the delay of thereport by Jason, and ___________.

afraid of making mistakes,the little boy____answer his teacher’s question.