rise in carbon dioxide is causing steady increase in global warming.
| A．不填; a | B．The; a | C．The;不填 | D．A；the |
______ is known to everybody, Taiwan is a part of China. We must unify it.
| A．It | B．As | C．That | D．What |
—Would you be able to go to the party?
| A．I don't expect | B．I'm afraid not |
| C．I don't think so | D．I believe not |
—Are you coming to the English evening?
—I'm not sure. I ________ go to the concert instead.
| A．must | B．would | C．should | D．might |
Hearing his words, I couldn't decide ______ or remain.
| A．whether to go abroad | B．if I go abroad |
| C．if to go abroad | D．to go abroad |
—This is _________ picture I told you about.
—I see. Isn't it ________ beautiful one?
| A．a; a | B．the; a | C．the; the | D．a; the |