Tính:a, (-23) + 46 + (-17) +14b, (-3-21) : 4

Bn tham khảo!

III.Simple present or present continuous (Chia động từ ở thì hiện tại thường hay hiện tại tiếp diễn)

1.Mr. Green always (go) ................................... to work by bus2.It (not rain) ......................................... in the dry season(mùa khô)3.Be quiet ! The baby (sleep) .....................................4. It (be) ............................... very cold now5.It (rain ) ............................ much in summer. It (rain) ............................ now6.My baby sister (drink ) .................................... milk everyday7.The doctor sometimes (come) ................................. home late8.Look ! The bus (come) ..............................................9.My mother (cook) …………....... some food in the kitchen now. She always (cook)……........... in the morning10.My father often (watch)………………….in the evening