30.They ______ be at home. You see, the door is locked from the outside.

It is now widely acceptable thathibernation is _____ sleep for animals.

Life is limited. We had better _______ it on valuable things.—Good idea. And we should spend more time ______ our family members.

The shop early in the morning and it from 8:00 a m. to 5: 30 p. m.

It rained heavily in the south, seriousflooding in several provinces.\”,caused,having caused,causing,to cause,C I hurried back home only ________ that I had left my key at my office.,to find,finding ,having found ,found,A What is the way George thought of ______ enough money to buy the house,to get,getting,having got ,being got,A －If you like I can do some shopping for you.－That’s a very kind______.,service,point,suggestionDoffer,offer,D The lunch period will be _____ from 30 minutes to an hour from now on.,expanded,extended,spreadDadded,added,B If you sleep less than 7 hours a day