--What do you think of cloning?--No doubt it’s a great invention. But _______

--What do you think of cloning?--No doubt it’s a great invention. But ________, it may have some side effects.

#89815

if not properly handling

if properly not handled

if not properly handled

if properly not handling

推荐题目

The long-lasting war, ______ with blood and death, ended in people’s sadness, ______ no result.

#97137

filling; reached

filled; to reach

filling; would reach

filled; reaching

 We saw many students playing on the playground, most of them _____ girls.

#96793

are

being

were

have been

He found the manager _____ by letters and papers and _____ very worried.

#94682

surrounding; looked

surrounded; looked

surrounding: looking

surrounded; looking

Russia will soon return 174 sq km of territory on the northeast border to China, ______ more than 40 years of negotiations．

#98479

ending

ended

to end

being ended

—Shall I turn on the TV, Mom?—No. You should be quiet _____ wake up your sleeping brother.

#91395

so not as to

so as not to

so as to not

not so as to

共7470题