Some molecules are large enough ________ (see) under the electronic microscope.
to be seen
暂无解析
Hefellasleepimmediatelylastnight;hemust________(be)verytired.
Iknowitisn’timportantbutIcan’thelp________aboutit.
Iwishyou________likethat.
Howlong________they________(dig)theditch?
Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.
