----Must trees be planted in spring?----No, they _______

查看本题答案

包含此试题的试卷

are planted was planted is planted were planted

are planted will plant have been planted planted

must plant; make up will plant; look up will be planted; come up with must be planted; put off

weren’t they mustn’t they didn’t they haven’t they

it is necessary to have planted more trees many more trees need to plant our city needs more trees we must plant more trees

—Well, more trees ________ every year to stop the winD. A. must be planted can planted should planted planted

having planted planted have been planted to be planted

it is necessary to have planted more trees many more tress need to plant we must plant more trees our city needs more trees

) it in necessary to have planted more trees ) many more trees need to plant ) our city needs more trees ) we must plant more trees

thousand thousand of thousands of thousands

put off make up come up with look up

just even alone only

Thousands of Thousand of One thousand of Thousands

will plant should plant should be planted must plant

planted are planted were planted will be planted

it is necessary to have planted many trees many more trees need to plant we must plant more trees our city needs more trees

having planted planted have been planted to be planted

thousand thousand of thousands of thousand

were planted is planted will be planted are planted