It is difficult for any of us to eat better, exercise more and sleep enough _________ we know we should.
| A．despite | B．even though | C．as if | D．unless |
—What about ______ lecture you attended yesterday?
—To tell the truth, it was too boring. I can’t stand ______ lecture like that.
| A．a; the | B．the; a | C．the; / | D．the; the |
______difficulties we may come across, we' ll help one another to overcome them.
| A．However | B．Wherever | C．Whenever | D．Whatever |
Mary had promised to give me a ticket for tomorrow. She failed, ____.
| A．either | B．though | C．but | D．too |
.---You may find the key to the maths problem on page 107 .
---Ah, it’s so simple . I wonder why I of that .
| A．hadn’t thought | B．haven’t thought | C．didn’t think | D．wasn’t thinking |
---Ann looks hot and dry.
---So you if you had a high fever.
| A．do | B．are | C．will | D．would |