—What’s ______ most useful invention in the 20th century?
—______ computer, I think.
| A．the, A | B．a, A | C．the, The | D．/, The |
When I first met Bryan I didn’t like him, but Imy mind.
| A．have changed | B．change | C．had changed | D．would change |
Police have foundappears to be the lost ancient statue。
| A．which | B．where | C．how | D．what |
Tony can hardly boil an egg，stillcook dinner.
| A．less | B．little | C．much | D．more |
If wenow to protect the environment, we’ll live to regret it.
| A．hadn't acted | B．haven't acted | C．don't act | D．won't act |
Try not to cough more than you cansince it may cause problems to your lungs.
A. check B. allow C. stop. help