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A. a; an B. an; an C. a; a D. an; a

A. stay B. to stay

C. stayed D. staying

A. himself B. herself

C. yourself D. myself

【題目】You'd better make a good plan ___________ you take a holiday.
A.before
B.during
C.until
D.after

A. symbols B. letters C. description

A. looks like; looks like B. looks like; looks

C. looks; looks like D. looks; looks

【題目】—We can't be successful ___________ we keep working hard.
—I agree with you.
A.if
B.unless
C.because
D.when

A. Unluckily B. Simply C. Luckily

【題目】David didn't give up he had failed in the experiment four times.
A.if
B.while
C.though
D.since

--No, I ____.

A. Did; didn't B. Was; wasn’t C. Did; wasn’t D. Were; wasn't