$14$. Although the cafe was crowded, we found a table for ourselves.
`->`Although + mệnh đề: mặc dù
`->`but: chỉ hai mệnh đề mang ý tương phản nhau
$15$. Because of being careless, Tim lost his job.
$-$ Because of Tom's carelessness, he lost his job.
`->`since `=` because `=` because of: bởi vì
`->`because of + N/N phrase/V-ing
$16$. Mr. Smith suggested doing much physical exercise to join in the space trip.
`->`suggest + V-ing: gợi ý làm gì
$17$. Nga did aerobics regualrly.
`->`S + V + adv
`->`S + be + adj
$18$. Who will take part in the space trip to Mars with us ?
`->`participate `=` take part in: tham gia