How I miss you! It's over a month ________ I last saw you when 1 left for my university．

when

since

until

before

American fathers ________ more than twice the amount of time with their children than they used to in years past, due to a sweeping new trend called "unemployment"．

were spending

are spending

spent

have spent

We appeal to all countries to ________ cooperation on climate change, food security and the prevention of natural disasters．

attach importance to

lay stress in

put value for

hold up to

The world's elderly population will exceed(超过)that of children by 2060, when each group ________ to account for about one fifth of the population．

expects

will expect

is expected

will be expected

The government is taking measures to ________ its target of less than 3 percent inflation(通货膨胀)．

realize

balance

acquire

achieve

It is one thing to enjoy listening to good music, but it is ________ another to play it well yourself．

quite

very

rather

much

Your essay ________ beautifully．Is it the one I saw you writing yesterday?

is read

was read

reads

read

On Sundays there were a lot of children playing in the park, ________ parents seated together joking．

their

whose

which

that

________ on your study, and you will make greater progress．

Concentrating

If you concentrate

To concentrate

Concentrate

___________ untidily and __________ in a strange way, my brother must have appeared to the people ________to be a silly boy．

Dressed, spoken, presents

Dressing, speaking, present

Dressed, speaking, present

Dressing, speaking, be present