37. Lam is not a skillful worker any longer.
Lan used ....................................................................................
38. It’s a pity! we don’t know how to speak Chinese.
→ We wish ..............................................................................
39. Tom started reading this novel 2 days ago.
Tom has ...................................................................................
40. Nam didn’t learn this lesson by heart.
This lesson .................................
37. Lam is not a skillful worker any longer.
Lan used .................to be a skillful worker..............
38. It’s a pity! we don’t know how to speak Chinese.
→ We wish .........we knew how to speak Chinese.................
39. Tom started reading this novel 2 days ago.
Tom has ........read this novel for 2 days...............
40. Nam didn’t learn this lesson by heart.
This lesson ......wasn't learnt by heart by Nam (learn by heart: học thuộc lòng ).......