Not until the early years of the 19th century______ what heat is.
| A．man did know | B．man knew | C．didn’t man know | D．did man know |
—Why didn’t you buy the gold ring?
—I ______, but I didn’t have the money.
| A．would have | B．bought | C．would like to | D．had bought |
I noticed her beauty and honesty _______ I met her.
| A．first time | B．for the first time | C．the first time | D．by the first time |
Today Little Mary is ________ a new beautiful skirt.
| A．wearing | B．having on | C．putting on | D．dressed |
Hi, Jim. _________ seen you for ages. I really _______ see you here.
| A．Haven’t, don’t expect | B．Haven’t, didn’t expect |
| C．Hadn’t, hadn’t expected | D．Hadn’t, wasn’t expected |
The boy was too young to _______ right from wrong.
| A．realize | B．recognize | C．tell | D．know |