She is a beautiful singer. She sings ________. A. beautiful B. beautify C. beautifully D. beauty 2. Everybody wished ________this activity. A. keep B. to keep C. keeping D. kept 3. He volunteers ________us all in his car. A. take B. taking C. to take D. took 4. We can learn more about the undersea world thanks ________this invention. A. on B. for C. to D. of 5. The number of participants ________every week. A. increase B. increases C. is increasing D. increased 6. ________is a person who swims underwater using special equipment. A. Diver B. Scientist C. Cyclist D. Driver 7. He said that he would wait ________me. A. for B. of C. to D. in 8. We plan ________at about 3 o’clock. A. arrive B. to arrive C. arrives D. arriving 9. He ought to finish his homework before he plays tennis. A. must B. can C. will D. should 10.Do you like to take part in our club? A. play B. go C. join D. enter 11.I have to finish this question. A. must B. can C. should D. will 12.They take a walk instead of ________bicycles trips. A. take B. to take C. taking D. A&B 13.He is learning ________in the lake. A. swim B. to swim C. swimming D. A&C 14. ________is a person who rides a bicycle. A. Scientist B. Cyclist C. Member D. Typist 15.My father is a ________football player. A. skill B. skillful C. skillfully D. B & C 16.He also cycles slowly and ________. A. safe B. safety C. safely D. unsafe 17.As a child, he ought ________his parents. A. to obey B. to obeying C. obey D. not to obey