– Why do you like the boy so much, Sophia?– Because he is trying __________ best to catch up with others this term.
--Could you tell me _______? --Next week.
These photos ______ on the Great Wall last week.
If it ______ tomorrow, we’ll go to Bird’s Nest.
—Jim, ________ you answer the last question? -- Sorry, I can’t. It’s too hard.
His father ________ in the factory since he was twenty.