Some molecules are large enough ________ (see) under the electronic microscope.
to be seen
暂无解析
Ifound________toanswerallthequestionswithinthetimegiven.
Iknowitisn’timportantbutIcan’thelp________aboutit.
Thedirectorrecommendedthatshe________(study)moreEnglishbeforegoingabroad.
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.