He didn’t make____clear when and where the meeting would be held.
A. this B.that C. it D.these
He is a student at Oxford University, ____for a degree in computer science.
A. studied B. studying C. to have studied D. to be studying
If it ______________ tomorrow, I would stay at home watching TV.
A. should rain B. rains C. was to rain D. will rain
Each time ________ they met, they would talk long hours together.
A．which B．when C．during D．/
Though ______ _money, his parents managed to send him to a key university.
A. lacked B. lacking of C. lacking D. lacked in
In time of serious accidents, ________ we know some basic things about first aid, we can save lives.
A．whether B．until C. if D．unless
