Life in the oceans ranges from the tiniest plankton(浮游生物) ______ to giants like sharks and whales.
Her composition is well written _______ some spelling mistakes.
“You _______ be so tired that you had to stop to rest.”
He must have finished the work yesterday, _______ he ?
He must have lived here for 10 years, _______ he?
“Where is it?” “Where is _____? I don't know what do you mean?”