“We can't go out in this weather,”said Bob, out of the window.
A.looking | B.to look | C.looked | D.having looked |
___in the air, this kind of steel become harder and harder.
A.Cooling | B.Having cooled | C.Being cooled | D.Cooled |
In a chemical change, energy cannot be created ,____.
A.nor can it be destroyed | B.not it be destroyed | C.so can’t it not be destroyed | D.either it cannot be destoryed |
The Loisels did what they could ___ the debts.
A.to pay off | B.to pay for | C.paid off | D.paid for |
The teacher entered the classroom, _____.
A.with book in hand | B.book in hand | C.with book in his hand | D.book in his hand |
Let’s have another look, ___?
A.will you | B.shall we | C.do you | D.don’t you |