There is no doubt _______ international cooperation is the key to _______ with cyber crime.

A. whether; doing B. that; dealing

C. whether; do D. that; deal

 Please do me a favor----_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.

A. to invite B. inviting 

C. invite D. invited

 It took me quite a long time to ________ the new environment here.

A. adapt to B. relate to

C. apply to D. attach to

 He made another wonderful discovery, ______ of great importance to science.

A. which I think it is B. which I think is

C. which I think  D. I think which is

 Would it be ________ for you to pick me up at four o’clock and take me to the airport?

A. free B. vacant

C. handy D. convenient

 ______ by the clear waters, this forest provides visitors with a wonderful chance to see some endangered birds in the wild.

A. Being surrounded B. Surrounding

C. Surrounded    D. To be surrounded

 ----Guess what, we’ve got our visas for a short term visit to the UK this summer.

   ----How nice! You ______ a different culture then.

A. will be experiencing  B. have experienced

C. have been experiencing  D. will have experienced

 It’s cold here. _________ I switch on the heating?

A. Should B. Will

C. Would D. Shall

 After many attempts, she ________ managed to get promotion.

A. immediately B. suddenly

C. naturally D. eventually

 I made ___ clear to my team that I want our initial reviews completed this week.

A. this B. that

C. it D. one