The container ________ with care for it is fragile(易碎的)

should handle

ought to be handling

must be handled

is handled

The math problem is ________ and I'm ________ with it．

puzzling; puzzling

puzzled, puzzled

puzzled, puzzling

puzzling, puzzled

The bus roll into the vally ________ ten deaths and more wounded．

to cause

caused

causing

having caused

Realizing that he hadn't enough money and ________ to borrow from his father, he decided to sell his watch．

not wanted

not to want

not wanting

wanting not

________, we couldn't get in touch with her．

Not knowing her telephone number

Knowing not her telephone number

Knowing her telephone number

Not having known her telephone number

I'm sorry I can't help ________ the room．

cleans

cleaning

cleaned

to clean

The coat ________ is similar to mine．

hanging on the wall

hang on the wall

hangs

to hang

________ the meeting himself gave them a great deal of encouragement．

The president will attend

The president to attend

The president's attending

The president attended

Can you imagine ________ on the moon?

to live

living

live

should live

After ________ for the job, you'll be required to take a language test．

being interviewed

interview

inviewing

having interviewed