câu hỏi

………………………installs and repairs water pipes..                                            A. An engineer           B. plumber             C. A dentist                 D. An electrician 2. I suggest ................. hard for the test.                                      A. learn                      B. to learn               C. learning                  D. should learn   3. ………… collect unused clothes and give them to poor people ?                    A. What about     B. I suggest              C. Why don’t we        D. I think we 4.  Shall we go to school by bike to save energy?   - …….......................        A.  Yes, we shall.        B.  Yes, we do.       C. That’s a good idea.      D. No, we don’t     5. Mrs Ha  is worried ……………………. her most recent water bill.        A. on                             B. about                    C. at                               D. for