—John got injured in the game.—Would it be at least a fortnight ______ he could recover and return to school?

---- Who are playing football in the gym now? ---- ________ the students from No. 1 Middle School.

—What does this modern-day dinosaur look like? —The tongue of this animal can be extended _____ of its body.

35. So little ________  about science that the lecture was my understanding.

I arrived home at midnight, _______ my parents had been waiting for nearly three hours.