HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
điền vào chỗ trống
i (lose) my key . can you help me look for it?
my teacher wasn't at home when i (arrive) . he (go) out
how long bob and mary (be) married?
i (not see) her for a long time
tom (study) chemistry for 3 days and then he gave it up
i think he (leave) as soon as he (know) the news
violets (bloom) in spring
cho tam giác ABC đường cao AH gọi D , E lần lượt là hình chiếu của H trên AB,AC .CM:DE mũ hai =BD nhân CE nhân BC
cho tam giác ABC vuông tại A , đường phân giác AD đường cao AH . biết BD=7,5cm , CD=10cm ,tính AH , BH , DH
một cộng căn của căn 2 phần 5 trừ căn 6
giúp mình vs
viết lại câu
man has never had such efficient servants as computer
-computer is the most
i have been to the ballet before
-it is
jonh and mary moved to endinburgh twenty years ago
mary rang hours and hours ago
ha hasn't laughed so much for ages
-it's
the last time i was aboard was in the summer of 1978
-i haven't
the editor last written to mai for a month
-the editor last
ly's father stated to stop smoking last year
-ly's father
i have learned english for four year
-we started
she started to learn english 8 years ago
my morther was the most warm-hearted person i've ever known
-i have
i haven't been able to see them for over a year
it started to rain at 2 o'clock
-it has
it's ten years since that house was lived in
-that house
you haven't tidied this room for weeks
-it's weeks
we started looking for a flat 2 months ago and we still looking
-we have
tìm m để phương trình cos ( 2x + pi/6 ) = m +1 có nghiệm x thuộc ( 7pi/24 ; 3pi/4 )