A lot of trees ____________ every spring in Yiyang city． （ ）
A．plantB．is planted
C．are planted
Max got lost and was trapped in the forest for 10 hours _______ a farmer nearby found him．（ ）
A．ifB．sinceC．untilD．after
Wow， eighteen pink roses! For whom？
________ are for my mum， and the other nine are for my grandma．（ ）
A．FewB．HalfC．ManyD．Most
David is crazy about Chinese history． He ______ visits the museums first wherever he travels in China．（ ）
A．neverB．seldomC．sometimesD．always
My uncle's reviews on the four great classical Chinese novels may be published _____ the summer of 2021．（ ）
A．inB．onC．atD．for
Tom was happy to get a chance to play _______ football for the school team．（ ）
A．aB．anC．theD．不填