- The doctor advised Elsa strongly that she should takea good rest, but______ didn't help.[ ]A. sheB. itC. whichD. he
- Is _____ necessary to return the book tomorrow?[ ]A. thisB. thatC. itD. which
- ______must be hard to explain the question.[ ]A. ThatB. ThisC. ItD. You
- They find ______ difficult ______ on real ice.[ ]A. it; skateB. that; to skateC. that; skatingD. it; to skate
- ____ seems that ____ not enough time to go over all the lessons before the exam.[ ]A. It; there isB. There; there isC...
- I find it easy ___ out the math problems.[ ]A. workB. workingC. worksD. to work
- I find _____.[ ]A. not easy to master a foreign languageB. not easy master a foreign languageC. it not easy to master...
- It's silly you your car at such a low price.[ ]A. for; to sellB. of; to sellC. for; sellD. of; sell
- ________ is hard to finish doing the exercises in thirty minutes.A. ThatB. ThisC. ItD. He
- I find ________ difficult to remember everything, though I’m still young.[ ]A. thatB. thisC. itD. what
- I find _______ difficult to remember everything, though I’m still young.[ ]A. thatB. thisC. itD. what
- I find _____ difficult to finish the work on time , we only have three hours left .[ ]A. thatB. itC. itsD. this
- He found _________important to protect wild birds.[ ]A. it'sB. itC. thatD. this
- Did you find_____very interesting to play volleyball?[ ]A. thisB. thatC. it
- — What do you think of this football match?— I've no idea. But is believed that Spanish team will win.[ ]A. thatB. th...