He used to be very shy but he has grown it now.
Next to biology , I like physics ________.
The hotel is almost finished, but it _____ needs one or two weeks to get ready for guests.
(2012辽宁卷)We used to see each other , but I haven’t head from him since last year.
Bicycling is good exercise; ____, it does not pollute the air.
(2013·安徽卷)It, s said that the power plant is now large as what it was.