Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it.

A. to see       B. to be seen       C. seeing           D. seen

—I’ve told Nancy many times about the meeting, but she still forget it!

—I understand. Actually, anyone ______ be very forgetful at times.

A. must   B. should        C. ought to         D. can  

—why, Jack, you look so tired!

 —Well, I _____the house and I must finish the work tomorrow.

A. was painting    B. will be painting   C. have painted  D. have been painting

I'm fine — I just felt a bit sleepy and tired, that was ________ I went to bed so early."

A. because      B. when      C. that       D. why

By the time these books were published,  he _____ addicted to them.

A．had become   B. becomes   C. has become   D.became

All of us found ______ difficult to work out the maths problem.

   A. what            B. that           C. which          D. it

________ was most important to her was her family.

A. What            B. Which       C. As           D. It

----Look! Where are you going?  ---Sorry. I _______________.

A. wasn’t noticing   B. am not noticing.   C. don’t notice.   D. haven’t noticed

When the clock __________ twelve o’clock, Cinderella suddenly remembered her godmother’s words and rushed away from the prince.

A. struck          B. beat           C. alarmed         D. settled

The explanation of our teacher will make the reading easy ______.

A. to be understand    B. to understand   C. understood     D. understanding