It's a rule that students ___________ bring mobile phones to our school.( )
mustn't
wouldn't
needn't
couldn't
On video, Doctor Zhong Nanshan ________ teenagers to study hard in the first lesson of this term.( )
A.allowedB.trainedC.encouraged
﹣﹣﹣ ________ is it since the Communist Party of China(中国共产党)was founded?
﹣﹣﹣ Ninety﹣nine years. It's her 100th birthday next year.( )
A.How oftenB.How longC.How soon
The kid is doing his lessons ________ in order to pass the test.( )
A.wildlyB.carefullyC.lazily
The twin brothers are busy ________ artworks from ocean waste.( )
A.makingB.makeC.to make
Han Mei, a good friend of mine, ________ me a lot with my English in the past three years.( )
A.helpsB.helpedC.has helped