My parents will buy a piano for me if I _____ good grades in the tests.
Alan late to study for the math test last night.
Shandong lies ____the east of Chinaand Japan lies_______the east ofChina.[ ]
With 4G mobile phones, people can even see each other as they talk. —-Really? Would you show me it, please?
They had to stay at home _____ a heavy rain.[ ]