dùng bốn chữ số 1; 3 ;4; 5 viết các số có bốn chữ số khác nhau a )viết được bao nhiêu số b )tính tổng tất cả các số viết được

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Give the correct form of the verb in the brackets 1. Look at those black clouds. It (rain) .................................. 2. We (not see)............................................ her since we (be) on holiday in Ha Long Bay 3. Phuong (not finish)......................................... her homework yet. 4. Would you like some coffee? I (just /make) .......................................some. 5. Noone (use)......................................................... this car for several years. 6. Last night ,when we (visit)............................... him, he (do) .............................................. an experiment on the upstairs 7. The phone (ring) ......................................at midnight last night. 8. I (not see) your uncle recently. - No. He (not go) ..............................................out since he(buy)................................... a new color TV. 9. Ba and Phong (know)................................................... each other quite well for years. 10. My uncle (just/open)......................................... a new internet house on Trang Thi street. 11. Her grandfather (die) ...................20 years ago. She (never meet) ...........................him . 12. Linh’s brother (lose) .........................................................his job last month and since then he (be) ................................out of work. 13. +You (see) ..................................................Mrs Chi lately? - Yes. I (see) .......................................her at the school gate three days ago. 14. The Pikes (move) ......................................................to London since 2002 15. As soon as I (have)............................................. enough money, I’ll buy a new car.