A.is | B.was | C.are | D.be |
A.do | B.did | C.doing | D.to do |
A.heard | B.hear | C.hears | D.hearing |
A.stay | B.stays | C.staying | D.stayed |
A.was | B.be | C.are | D.were |
A.happy | B.excited | C.sad | D.angry |
A.climb | B.climbing | C.climbs | D.climbed |
A.on | B.into | C.under | D.at |
A.sad | B.scared | C.tired | D.angry |