—Do you know how old the old man is?
—Maybe he is 70 years old, but I can't say it __________.
A.exactly B.quickly C.easily D.luckily
I left school in 2010, and since then I ______ in Beijing.
A.work B.worked C.will work D.have worked
— is an honor to come to your party today. Thanks for inviting me!
—You’re welcome. Have a great time here!
A.They B.It C.This D.That
—Have you finished your homework, dear?
—Not yet. I have trouble the math problems.
A.carrying out B.to carry out C.working out D.to work out
—Jerry, you should __________ the order for shoes online. Your father bought a pair for you in the shop this morning.
—OK, Mom! I'll do it.
A.cancel B.continue C.compare D.copy
—How did Jack get out of the forest?
—By leaving some__________.
A.sights B.tourists C.marks D.diaries
