--I saw Betty go to Grandpa Li's home just now.
--Yes. She’s often seen _________ the old man with the housework..
A: help B. to help C. helps D. helped
—Jack failed the driving test again.
—The question is_____ we can help him avoid making the same mistake.
| A．how | B．why | C．what | D．whom |
My meaning didn’t ___so I explained it a second time.
| A．get around | B．get over | C．get through | D．get across |
Little _____ at that time that this“boring”subject would become his favourite later on.
| A．he knew | B．he has known | C．did he know | D．has he known |
It’s almost five years____we saw each other last time .
| A．before | B．since | C．after | D．when |
Our city has experienced ___this year as it did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |