IV. Complete the sentences using words in bracket. 1) If he ____________ (have) a temperature, he________________ (see) the doctor. 2) If we won the lottery, we________________________ (fly) to London. 3) After they ___________________ (finish) lunch, they went out. 4) Hoa and Lan ____________________ (not/meet) before the exam. 5) I _________________________ (not/have) lunch when she arrived. 6) While we ________________ (run) in the park, Mary fell over. 7) His mother is unhappy _______________ (because/ because of) his room is untidy. 8)Alice _________________ (see) the accident when she was catching the bus. 9) He said that He _____________________ (not/visit) the US before. 10) If we travel to Hanoi, we_____________________ (visit) the museums.