They were trying to remove harmful ___________ from cigarettes.
| A．content | B．substances | C．materials | D．mixtures |
—She looks very happy. She ______ have passed the exam.
—I guess so. It’s not difficult after all.
| A．should | B．could | C．must | D．might |
____ he had not hurt his leg, John would have won the race.
| A．If | B．Since | C．Though | D．When |
—I saw Jane and her boyfriend in the park at eight yesterday evening.
—Impossible. She TV with me in my home then.
| A．watched | B．had watched | C．would watch | D．was watching |
Jenny nearly missed the flight______ doing too much shopping.
| A．as a result of | B．on top of | C．in front of | D．in need of |
The weather was ______ cold that I didn’t like to leave my room.
| A．really | B．such | C．too | D．so |