He learned how to use sign language to _________ with deaf customers．

connect

contract

communicate

relate

Each nurse _________ two evenings _________ studying medical literature．

devoting; to

devote; at

devotes; to

devotes; for

When the boy saw a bright object _________ toward him, he felt his heart _________ wildly．

flying; beat

fly; beating

flying; beating

fly; beat

Joyce was last seen _________ on the seashore when we found him．

playing

play

was playing

to be playing

I _________ to Beijing twice．

have been

have gone

go

have been going

Although medical science _________ control over several dangerous diseases, what worries us is that some of them are returning．

achieved

has achieved

will achieve

had achieved

At the end of the meeting, it was announced that an agreement _________．

has been reached

had been reached

has reached

had reached

I got caught in the rain and my suit _________．

has ruined

had ruined

has been ruined

had been runied

All the preparations for the task _________, and we’re ready to start．

completed

complete

had been completed

have been completed

When I was studying in the university, I _________ four foreign languages, but I _________ all except for a few words of each．

spoke; had forgotten

spoke; have forgotten

had spoken; had forgotten

had spoken; have forgotten