Tick bites(蜱虫叮咬)are reported ________ in 12 provinces and claimed 31 lives since 2007．

to break out

to have broken out

to be broken out

to have been broken out

On Feb 27, Chinese Premier Wen Jiabao took part in ________ online chat with Chinese netizens, who expressed interests and concerns over property prices, inflation, ________ wealth gap and other social issues．

the; a

an;/

the; the

an; the

The watch was really good, but I ________ plenty of better ones．

was seeing

have seen

see

had seen

We will never give in ________ they do or say about our plan．

No matter when

how

whatever

although

How many times have you found yourself arriving at school to start your day, only ________ that you left your homework at home?

having discovered

discovering

to discover

discover

When one makes new friends, don't forget ________ old ones．

to come up with

losing sight of

to keep track of

keeping in touch with

Mr．Smith has not yet told me ________ I can go with him to ________ he calls the Underground Treasure House next week．

that, where

what, where

whether, that

whether, what

Hands ________ high, the dancers circled now to the right, now to the left．

holding

were held

held

had held

It was only quite recently, however, ________ I began to understand how much my parents love me．

when

that

before

after

My most devoted friend, Professor Chen, ________ often go skiing when he lived in the mountain that was covered with snow．

would

should

could

might