(2013·福建毕业班质检)It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
#89316
A
produced
B
producing
C
to produce
D
having produced
推荐题目
There are five pairs, but I'm at a loss which _____ to buy.
#98873
A
to be chosen
B
to choose from
C
to choose
D
for choosing
I hurried back home only ________ that I had left my key at my office.
#88695
A
to find
B
finding
C
having found
D
found
When he ______the door, he found his keys were nowhere.
#88230
A
would open
B
opened
C
had opened
D
was to open
the past year as an exchange student in Hong Kong, Linda appears more mature than those of her age.
#88394
A
Spending
B
Spent
C
Having spent
D
To spend
— O’Neal works hard.— So he does. He is often seen _____ heavily before his teammates have even arrived at practice.
#98586
A
to be sweated
B
sweated
C
be sweated
D
sweating