The ground is wet．It must have rained last night, ________ it?

A．hasn't

B．mustn't

C．didn't

D．hadn't

They ________ in love for several years and then they ________ in 2008．

A．had been; got married

B．had fallen; married

C．fell; were married

D．were; married with each other

Not until the train pulled into the next station ________ her suitcase gone．

A．did Mary find

B．had Mary found

C．Mary found

D．Mary had found

________ to his research work, the professor cared little about any other things．

A．Devoting

B．Devoted

C．Having devoted

D．To devote

I bought three pens of this brand and now ________ is left．Somebody just borrows something and never returns．

A．neither

B．nothing

C．either

D．none

Greatly moved by her words, ________．

A．tears came to his eyes

B．he could hardly hold back his tears

C．tears could hardly be held back

D．his eyes were filled with tears．

I was going to pay when it suddenly ________ me that I had left my purse at home．

A．happened to

B．occurred to

C．referred to

D．added to

________ you are aware of the trick used in advertisements, I don't think you are eager to buy．

A．Unless

B．Whether

C．Once

D．Although

More attention should be paid to the left-behind children in the countryside ________ parents work in cities to make a living．

A．that

B．where

C．who

D．whose

I didn't see Faye Wong at the concert last night because she ________ to appear as planned for some reason．

A．failed

B．attempted

C．managed

D．decided